You will find in this post a collection of 157 free software tools from difference software categories. No fees. No expiration dates. No problems. Sometimes even no downloads.
If you need the URL of any website and you couldn’t find it don’t hesitate to contact me by email and I’ll send you the URL.
Hall of Fame
Adobe Reader
Windows | MacOS | Linux | Mobile This simplest of Adobe’s PDF programs lets you do just about anything PDF-related (besides create new ones), including online collaboration. It includes a host of features to aid users with disabilities.
AIM
Windows | MacOS | Linux | Web One of the most widely used pieces of free software ever, AOL Instant Messenger offers a ton of capabilities.
Read our full review of AIM 6.5.
Audacity
Windows | MacOS | Linux Whether you’re recording or editing, Audacity is all about audio in practically any format.
Firefox
Windows | MacOS | Linux This PC Mag Editors’ Choice Web browser has been on top of the heap since version 1.5 came out in late 2005. Read our full review of Firefox 2.0.
GIMP
Windows | MacOS | Linux The GNU Image Manipulation Program (GIMP) does most of what Photoshop does; the Gimpshop project (plasticbugs.com) even makes it look like Photoshop. Read our full review of The GIMP 2.0.
iTunes
Windows | MacOSWhen you’re attached to the top media player in the land (iPod), success is a given. iTunes continues to build sales and refine its organization of songs, video, games, podcasts, and more. Read our full review of Apple iTunes 7.6.
OpenOffice.org
Windows | MacOS | Linux You can spend a lot for Microsoft Office or nothing for this suite with full-function word processor, spreadsheet, database, presentations, even an equations editor. Read our full review of OpenOffice.org 2.3.
Skype
Windows | MacOS | Linux You’ll pay to call regular phones, but if you sign up all your friends, Skype provides easy (and even international) calls and video-conferencing for nothing. Read our full review of Skype 3.0.
Thunderbird
Windows | MacOS | Linux Mozilla’s no-cost e-mail alternative is extensible, fast, and easy to master. And a wealth of free add-ons means there’s not much this program won’t do, from calendars to encryption. Read our full review of Thunderbird 2.
Ubuntu
Linux This Linux-based OS comes with many of these Hall of Fame products (Firefox, OpenOffice.org) preinstalled.
WinAmp
Windows After a decade of playing music, the “skinnable” WinAmp has several versions, including one with full CD ripping and burning.
Operating Systems
ajaxWindows
Web A virtual operating system (aka Web OS), it uses Asynchronous Java-Script and XML (AJAX) programming to mimic the look and feel of a Windows desktop in Firefox or IE. It stores files (using Gmail) and runs its own applications, plus Web apps like Meebo and Google Maps. If you can launch a Web browser, you can get work done through ajaxWindows.
eyeOS
WebThis Web OS has ultra-simplified applications, including an RSS reader, satellite maps, a word processor, even a browser—yes, for browsing the Web while on the Web.
Freespire 2.0
Linux This community-driven OS is based on Linspire (formerly Lindows)—a Linux distro that looks like Windows, with an emphasis on compatibility with other platforms.
Glide
Web | Flash Sleek style sets this Web OS apart, as does the ability (using a separate utility) to sync files, bookmarks, and e-mail from your real OS. Read our full review of Glide Effortless.
gOS
Linux Ubuntu-based and powered by Google’s apps (just don’t call it Google OS), gOS comes with the $200 PCs from Wal-Mart, but you can download it for any PC.
Antivirus/Anti-Malware
avast! 4 Home Edition
WindowsSpiffy-looking avast! notifies you by e-mail or IM if it catches a virus. You can’t schedule scans, but its recovery database can help if a virus damages your files.
Read our full review of avast! 4 Home Edition.
AVG Anti-Virus Free Edition
WindowsIts control center is awkward, but AVG scans files on demand, upon access, on a schedule, and in e-mail. Its rescue disks will help you recover from disaster.
Read our full review of AVG Anti-Virus Free Edition.
Avira AntiVir Personal Edition Classic
WindowsAntiVir scans files on demand, upon access, and on a schedule; it doesn’t scan e-mail attachments until they’re saved, but it does go to work on rootkits. It’s especially good at coexisting with other security software. Like most good AV software, it has the Virus Bulletin’s VB100% award and certification for virus detection from ICSA Labs.
Read our full review of Avira AntiVir Premium Security Suite.
HijackThis
Windows Run HijackThis, save a log, and then post the log on sites that support the program. You’ll quickly get personalized expert help to remove any malware.
NanoScan
Windows | WebIn less than a minute, NanoScan can analyze all processes running on your computer and identify viruses, Trojan horses, spyware, or other malicious programs.
ThreatFire AntiVirus
WindowsThreatFire detects the bad guys by their behavior, not by outdated virus signatures. It’s surprisingly accurate and a good companion to standard antivirus apps.
Read our full review of ThreatFire 3.
Trend Micro HouseCall
Windows Use the venerable HouseCall online scanner to get a second opinion, or use the app for cleanup when malware prevents installation of a local antivirus utility.
Firewalls
Comodo Firewall Pro
WindowsThis protective dragon for XP and Vista keeps hackers out of your system, controls which programs can access the Net (its whitelist of about one million means you get fewer pop-ups), and blocks tricky “leak test” techniques. It’s both tough and good-looking.
Read our full review of Comodo Firewall Pro.
ShieldsUP!
Windows | WebBe sure your fire-walls are keeping your always-on Internet connection hidden from attackers. Shields-UP! provides a quick confirmation.
Read our full review of ShieldsUP!.
SmoothWall Express
LinuxGot a spare PC running a Pentium 200 MHz or higher with 128MB of RAM? Turn it into a dedicated network firewall with this open-source download.
ZoneAlarm Free
Windows The free edition remains a useful protector against hack attacks and against programs that abuse your Internet connection.
Security
EULAlyzer
WindowsWonder what you’re agreeing to when you click “I Accept”? Don’t worry; just drag EULAlyzer’s target icon onto the EULA for a quick report on any troublesome language.
Read our full review of EULAlyzer Personal 1.1.
Hotspot Shield
WindowsCreate an instant virtual private network (VPN) tunnel between your laptop and the router at any Wi-Fi hot spot to protect your data from snoops on the public airwaves, even if you’re using extra encryption. If you’re on a network that limits the use of certain apps (such as Skype), the VPN could give you unfettered access. It even works with your wired connection for an extra layer of security.
Kruptos 2
Windows Kruptos makes a file accessible only to someone who knows the password; it includes a file shredder.
PC Flank
Windows | WebWhile ShieldsUP! tests your firewall’s ability to stealth all ports, PC Flank performs surgical strikes that emulate specific malware attacks to verify that your firewall blocks them.
SendShield
Windows This Outlook add-on strips out extra info and tracked changes in Word documents attached to messages.
Finance
mint
WebMint isn’t like Quicken, where you enter in all your transactions. Instead, it syncs with your bank and credit card accounts online, checks your spending habits, and tells you how to improve to save money. If you’re not paying attention to your spending, it’ll send you regular alerts to inform you where your money has gone (nice for making sure you haven’t been ripped off).
GnuCash
LinuxLinux users can track their bank accounts, stocks, and expenses in this financial program using a double-entry accounting method.
Office
AbiWord
Windows | MacOS | Linux Volunteers keep this open-source word processor alive. It closely mimics the look and feel of Microsoft Word 2003 and earlier.
Read the full review of AbiWord 2.0.
Gliffy
Web | Flash An online-only diagramming tool with more options than you can flowchart. The free version is limited to five diagrams.
Google Docs
Web | MobileGoogle’s slickly designed office suite offers online shared word processing, spreadsheets, and presentations-and best of all, finally a solid alternative in the office-suite space to the totally dominating Microsoft. Upload or e-mail your current documents for storage and editing.
Read the full review of Google Docs.
IBM Lotus Symphony
Web | Mobile A much prettier version of OpenOffice.org, Symphony is prepped for presentations, spreadsheets, and word processing in a single window (but lacks OO’s drawing and database modules).
Read the full review of IBM Lotus Symphony Beta.
KompoZer
Windows | MacOS | Linux A full WYSIWYG Web-page authoring tool akin to Dreamweaver, KompoZer integrates an FTP site manager for file uploads.
NeoOffice
MacOSThis version of OpenOffice.org has the same great tools and price (free), but with an interface designed specifically for the Mac OS.
Notepad++
Windows Notepad++ handles text–especially source code-in ways the basic Windows Notepad could only dream of, with embellishments like tabs and color coding.
Read the full review of Notepad++.
Scribus
Windows | MacOS | Linux This open-source page layout tool has features comparable to big names like PAgemaker, plus support for PDFs and scalable vector graphics (SVG).
Windows Live Mail
WindowsLive Mail not only reads your Hotmail, but also can check POP, IMAP, or HTTP mail accounts. It works as an RSS feed reader and a newsreader.
Zoho
Web | MobileZoho features every tool you could want-word processing, spreadsheet, presentations, database, even a wiki-and several you never knew you needed. Some are also available off-line.
Read the full review of Zoho.
Calendar/PIMs
Plaxo
Web Perhaps the ultimate online address book, Plaxo is enhanced with the superpowers of a social network and plug-ins for many Web-based services like Flickr, YouTube, Twitter and LiveJournal for sharing across the Internet.
Backpack
WebBackpack is more than a to-do list site. Your five easy-to-update pages send reminders via e-mail or SMS and include a whiteboard for online collaboration.
Read the full review of Backpack.
EssentialPIM Free
WindowsImagine taking the e-mail out of Microsoft Outlook to get a killer personal information manager (PIM). That’s what EssentialPIM is all about.
Google Calendar
Web | MobileFeaturing seamless integration with other Google products, sharing capabilities, and SMS reminders, this Web app does for calendars what Google did for search.
Read the full review of Google Calendar.
Lightning
Windows | MacOS | LinuxTo be more like Microsoft Outlook, Thunderbird needs a calendar. Lightning provides that, plus a to-do list. It can even sync with Google Calendar.
Power Calculator
Windows This XP-only PowerToy replaces the lame Windows calculator with a mathematical powerhouse.
Remember The Milk
Web | MobileNever forget another grocery item, or anything else, using this extensible online task manager. It’ll send reminders via e-mail, SMS, and IM.
Sunbird
Windows | MacOS | LinuxSunbird is Mozilla’s standalone calendar for tracking events and upcoming tasks. It’s a sister to Lightning, which adds the same functions to Thunderbird.
30 Boxes
WebOne of the best-looking online calendars, 30 Boxes features easy-to-grasp pop-ups for adding events and viewing schedule details.
Yahoo! Calendar
WebTrack your schedule and share it with friends, then sync your calendar with Outlook or your phone. It’s a great place to back up a handheld.
Backup/Sync
Allway Sync
Windows Sync files between your PC and an external drive, filtering by folder, file name, or file type. The program displays warnings about questionable files before syncing.
DriveImage XML
Windows Make an image of your entire hard drive for backup and restore purposes.
FolderShare
Windows | MacOSInstall the utility on multiple computers, create an online account where you identify each computer, and pick folders to synchronize. Up-to-date data becomes available on all those PCs whenever you make a change in a folder, with sync taking place in the background so you’re never disturbed, just happy to find your files wherever you work.
Read the full review of FolderShare.
MozyHome Free
Windows | MacOS MozyHome provides automatic online backup for up to 2GB of your data.
PassPack
Web Pack away all your passwords in this secure online vault; it even logs you in to Web sites.
SyncToy v2.0
Windows Make sure folders across your networked computers contain the same files, even on drives that change location and name.
WinClone
MacOS Bootcamp users: Now you can clone (back up) your Windows XP/Vista partition for reinstall on a new Mac.
App Launchers
Launchy
Windows Launchy launches (duh) applications, files, folders, or searches via a command-line-esque interface.
ObjectDock
Windows Organize your application shortcuts in a toolbar that mimics the look and feel of the Macintosh dock, complete with icon animations. It will even mimic Windows Taskbar buttons. Add in extras (docklets) like real-time clock and weather forecasts, even a fully functional Windows Start button and Recycle Bin, to get everything you need.
QuickSilver
MacOS This open-source launcher takes plug-ins that allow it to do almost anything you want in the MacOS.
Utilities
Absolute Uninstaller
Windows Replace the Add/Remove Programs control panel in XP to get batch uninstalls and clear out leftovers that Windows frequently misses when uninstalling.
CCleaner
Windows The extra C is for crap, and that’s what CCleaner gets rid of: all the detritus left behind in the course of using Windows.
CoolMon
WindowsCoolMon displays all of your system’s vital statistics, including use of your CPU, RAM, and hard drives, internal PC temperature, and more.
Defraggler
Windows Defragment your entire hard drive-or just one heavily fragmented file at a time.
DriverView
Windows DriverView lists every single device driver running on your system, with extra info on each.
Eraser
WindowsShredders are popular in the office, so why not have the digital equivalent? Eraser adds a right-click menu that will do away with a file or folder forever.
FileZilla
Windows | MacOS | Linux Download this FTP client for accessing multiple sites or to use as an FTP server. In both cases, FileZilla has convenient drag-and-drop support.
Glary Utilities
Windows Glary offers a ton of utilities for cleaning, optimizing, and securing Windows in one package.
Microsoft Virtual PC 2007
WindowsInstall anything-DOS, OS/2, or any earlier version of Windows-as a virtual machine. It’ll run in a separate window on your Vista or XP desktop.
Read the full review of Microsoft Virtual PC 2007.
SandBoxie
Web Place a layer of “transient storage”-a sandbox-between your applications and your hard disk to stay safe.
SecureZIP
Windows Compress and decompress files on the fly, even in e-mail through Outlook integration, and encrypt archives as desired.
Task Killer
Windows Stop any Windows process dead; this is handy for clearing frozen applications.
TinkerTool
MacOS Get access to additional preference settings in Mac OS X to turn on hidden features.
Uniblue ProcessScanner
Windows | Web You can do the Ctrl-Alt-Delete salute in Windows to see what’s bogging down your PC, but can you understand the results? ProcessScanner, coupled with the online Process Library, provides extra information on each process (like whether it autostarts or not, and who makes the software in question), and even lists the security risk to your system for running it.
Downloads
BitLet.org
Web Who needs a BitTorrent client? Just find the torrent metafile link on a tracker site, plug it in at BitLet.org, and let it retrieve the file as if you were downloading it from a regular Web site.
Universal Extractor
Windows See what’s inside any archive file—ZIP, RAR, even EXE.
uTorrent
Windows The tiniest BitTorrent client around (only 214K) comes with all the torrent download features you crave.
Interface Enhancement
Battery Status
WindowsThis app runs in the system tray and takes advantage of smart battery support in XP/Vista to provide loads of info on laptop-power usage.
Google Desktop
Windows | MacOS | Linux Let Google index and search your hard drive contents. The sidebar adds graphical widgets to your desktop.
miniMIZE
Windows miniMIZE puts thumbnails of your minimized applications on the desktop for easier access.
Quero Toolbar 4
Windows Replace the Internet Explorer address bar to integrate ad blocking and make IE7 look more like IE6.
Vista Drive Icon
Windows Add one of Vista’s best features to XP: smart drive icons showing the current capacity of each hard drive.
XYplorer
Windows Multiple tabs and improved search enhance and replace the boring old Windows Explorer.
Yahoo! Widgets
Windows | MacOS Fill your desktop with tiny interfaces for everything from stock picks to RSS feeds to weather forecasts (using Doppler radar!) to Wi-Fi sensors to remote desktops to countdown clocks-to name a few. Pick from over 4,300; some are more useful than others, but almost all are interesting to look at.
File View/Conversion
Foxit Reader
WindowsPerhaps the fastest PDF reader around, Foxit includes a free annotation tool. Add-ons enable support for new file formats and UI languages.
Samuraj Data
Web You can display PDF files in your Web browser when no other reader is available.
ScanR.com
Web | Mobile Instantly perform optical character recognition (OCR) on pictures by e-mailing them from your phone to ScanR.com.
YouConvertIt.com
WebThis site turns just about any file into a different kind of file, even online videos from YouTube. It also converts units of energy, force, length, and more.
ZamZar
WebFile conversion is no longer a complete nightmare. Just go to ZamZar, upload a file, choose from a long list of extensions (including image, doc, music, video, and compression types), and enter your e-mail address. When it’s done, ZamZar will send you the converted file.
Networking
LogMeIn Hamachi
Windows | MacOS | LinuxInstantly create a free, peer-to-peer VPN connection between your computer and other people’s. Download the software, create a network with a unique name, give it to friends you want to join, and start sharing files with them—even your iTunes folder.
NetStumbler
Windows Use it to detect any Wi-Fi network in your vicinity and see if it’s open for use, or just use it to troubleshoot your own.
PrinterAnywhere
Windows Share your printer with others over the Web; in turn, send jobs to other shared printers, no matter their location.
Blogging
Blogger
Web | MobileBlogger was one of the first blog-publishing tools. Years after Google bought it, it remains one of the best, especially for newbies. Create a brain-dead simple weblog and let Blogger host it (with a blogspot.com name) using the slew of provided templates, or use it to publish a blog on your own domain.
w.bloggar
Windows This post and template editor can handle multiple blogs, across multiple blogging systems.
Windows Live Writer
WindowsLive Writer is not a word processor, but a universal, WYSIWYG blog-posting tool more powerful than most blog services’ own tools.
WordPress
WebIt lacks the simplicity of Blogger or Vox, but the commercial offshoot of WordPress.org offers some of the best tools of any hosted blogging service.
RSS Readers
Bloglines
Web | MobileKeeping track of your daily Web news reading can be a nightmare. This Ask.com-owned news aggregator is one of the cleanest and most straightforward methods for keeping your RSS feeds under control, and the new beta version features a great new interface that steals some of the best features of Google Reader.
Google Reader
Web | Mobile Google Reader is arguably the best RSS/newsfeed reader on the Internet. Read feeds while off-line or on your mobile phone.
Netvibes
Web This is a handsome combination of online RSS reader and podcast aggregator, with some widget apps thrown in.
Instant Messaging
Meebo.com
WebThis polished Web app aggregates your AOL, Gmail, ICQ, Jabber, Windows, and Yahoo! buddy lists into a single, Web-based instant-messaging and chat-room experience. Meebo is building in extras, such as games you can play with IM buddies, as well as video and audio chat you’d find with your regular IM client software.
Pidgin
Windows | Linux Open source tackles instant messaging in this client, which supports more IM networks than you’ve ever heard of.
Trillian
WindowsAccess all your IM accounts (AIM, ICQ, Windows Messenger, Yahoo!, and more) from a single interface that also logs all your conversations, if you desire.
Communication
GizmoProject
Windows | MacOS | Linux Gizmo competes with Skype to offer free, peer-to-peer, over-the-Internet phone and video calls, but uses open standards.
Gmail
Web | MobileWhat to do with nearly limitless e-mail storage space—that’s the enviable quandary of Gmail users, who can store up to 5.5GB worth of e-mail and chats. And the amount is constantly growing. Other perks include advanced search options, real-time updates, and “conversations,” in which e-mail chains are stored in one continuous thread for easy perusal.
Mail Redirect
Windows | MacOS | Linux This add-on for Thunderbird lets you bounce a message to the proper recipient without revealing that you got the message first.
ooVoo
Windows | MacOSooVoo video chat is more P2P than Skype (no supernodes!), with a better picture. It supports up to six co-videoconferencers, file transfers, and group text chat.
SightSpeed
Windows | MacOSSightSpeed has better video quality than ooVoo, but in a less attractive interface. More than two video chatters will cost you, as will file transfer and group chat.
Audio
Juice
Windows | MacOS | Linux Aggregate all your favorite podcasts in one place for easy listening.
Levelator
Windows | MacOS | Linux Levelator adjusts the levels of your audio files to give the perfect balance.
Reaper
Windows | MacOS The name is short for Rapid Environment for Audio Production, Engineering, and Recording. That pretty much says it all.
Wavosaur
WebA low-price and low-profile audio editor, Wavosaur doesn’t even need installation. Just click the executable to start processing and recording sounds. It lacks some of the features of full programs like Audacity, but for quick-and-dirty MP3 editing it can’t be beat.
Video
Cinelerra
Linux This is professional video-editing software for the Linux crowd.
Eyespot.com
Web Upload your clips, mix via drag-and-drop, and share your finished videos in one spot.
HandBrake
Windows | MacOS | Linux Convert your DVDs to MPEG-4 video (or just the audio) for backup purposes.
Jing
Windows | MacOSx Jing shares what’s showing on your monitor with others online, or records it for future viewing.
Jumpcut.com
Web This online app provides Flash-powered video editing.
Miro
Windows | MacOS | Linux Miro combines BitTorrent downloads with video playback to become the next best thing to your DVR.
MythTV
Linux Use your Linux box as a homespun digital video recorder (DVR).
Songbird
Windows | MacOS | Linux The open-source answer to iTunes (from the makers of WinAmp) plays your music and videos.
TVersity
Windows Turn your computer into a server to stream video and audio to just about any device on your network.
Ustream.tv
Web Our reviews call this the absolute easiest way to broadcast live video from your webcam across the Internet.
Videora Converter
Windows Convert nearly any video you can find online (or on DVD) for use on any video-capable iPod or iPhone.
VLC media player
Windows | MacOS | LinuxForget Windows Media Player. VideoLAN’s open-source VLC can replace it, and nearly every other player, too. VLC supports almost every audio format and video codec imaginable and doubles as a server for streaming your music and video to other PCs. Change its skin to make it look like the player you want—even WMP.
YouTube Uploader
Windows | MacOS If you’ve got a lot of YouTube videos ready to go online, upload them to the site all at once with the Uploader.
Graphics
IrfanView
Windows IrfanView previews images (or even audio and video) and then converts or optimizes them without opening a separate editor.
Paint.NET
Windows This program is probably the closest thing to Photoshop you can get free, courtesy of a student project.
Picasa
Windows | Linux Google’s photo manager makes it easy to get pictures off a digital camera, organize them, and even edit and share them.
Picnik
Web | Flash Instantly edit pictures in this Web site. Upload images from your computer, Flickr, Picasa, or elsewhere.
pikifx.com
Web Another online pic editor, pikifx.com emphasizes special effects such as added text and borders.
rsizr.com
Web | Flash With one of the best Web interfaces yet—all in Flash—rsizr.com incorporates smart resizing to avoid distortion.
Splashup
Web | Flash Another beauty with a Flash interface, Splashup sets itself apart with multi-image editing and a full-screen mode.
Windows Live Photo Gallery
WindowsWindows Live Photo Gallery gives Picasa (above) a run for its money, with many of the same photo-enhancing and sharing features—red-eye reduction, exposure adjustment, cropping, color, sharpen, and auto-adjust. What’s more, Microsoft serves up histogram adjustment, panorama creation, and photo-CD burning.
Browsers
Flock
Windows | MacOS | LinuxAnother browser based on Mozilla, Flock emphasizes interaction with social networks and services. It also accepts many add-ons from the Firefox browser.
Maxthon
Windows Replace IE or Firefox (but still use their rendering engines) with this highly customizable, multilanguage, tabbed beauty.
Opera
Windows | MacOS | Linux | MobilePossibly the nimblest and most usable of all the browsers available, Opera did tabs first and still does them best. Added usability features like Speed Dial and Tab Preview keep popping up in new versions.
Prism
Windows | MacOS | LinuxPrism is a site-specific browser, meaning you simply load a Web app (Gmail, for instance) and let it run like any other application on the desktop.
Browser Add-Ons
DownThemAll
Windows | MacOS | LinuxYou don’t have to download one item at a time from a Web page anymore. DownThemAll manages batch downloads, splitting files into pieces so they arrive faster.
Foxmarks 2.0
Windows | MacOS | Linux Foxmarks can synchronize your Firefox bookmarks across multiple PCs, even multiple operating systems.
Googlepedia
Windows | MacOS | Linux In Firefox, Googlepedia loads the most relevant Wikipedia entry it finds alongside your Google search results.
Google Toolbar
Windows | MacOS | LinuxThe toolbar brings Google’s search and other functionality directly to IE or Firefox. It offers extras like auto fill, spell-checking, and one-click RSS feed subscriptions.
Greasemonkey
Windows | MacOS | LinuxAdd this extension to Firefox and then extend it again with thousands of scripts that change the appearance and functions of almost any Web site.
IE7Pro
WindowsAdds a load of extras to IE7, including control over tabs, spell-checking, ad blocking—even Greasemonkey-esque scripts (see above).
IE Tab
WindowsDo you prefer Firefox but still need to look at some sites in IE? IE Tab will load a site in a Firefox tab using the IE rendering engine.
ScribeFire
Windows | MacOS | Linux This Firefox add-on sets up an interface for instant blogging on just about any blog system.
Tab Mix Plus
Windows | MacOS | LinuxTake total control of how tabs work in Firefox. Adjust how they look, revive those you closed by accident, send tabs to new browser windows-essentially any tab action you can imagine.
Zotero
Windows | MacOS | Linux Zotero makes it easy to keep track of all your research on the Web, including how to cite it in future reports.
Games/Fun
Eyezmaze.com’s Grow
Web | Flash It’s not a single game but a series that involves choosing “growing” items that are added to an online environment.
Geni.com
Web | FlashShare your genealogy with everyone in the family. They can contribute more individual profiles until your family tree is complete.
Google Earth
Windows | MacOS | LinuxFly over familiar terrain or foreign lands with Google Earth, a searchable database of satellite images and geographical data—even images of the heavens. You can go a step further with all sorts of downloadable, gee-whiz applications from scientists, media outlets, and other third-party developers to trick out your Earth-moving experience.
Google Maps
Web | MobileThis interactive mapping tool goes beyond driving directions. View destinations in Street View, Satellite, or Terrain modes; check traffic updates; or look up info on nearby businesses.
Kongregate
Web | Mobile Only 2,598 free games (as of this writing) to keep you busy online? Bring ’em on.
Second Life
Windows | MacOS This 3D virtual world has hundreds of thousands of denizens. Access is free, but you’ll pay a bit if you want to get some real estate, or even fancy clothes for your avatar.
Source pcmag.com