Free to download (http://www.compendiuminstitute.org/download/license.htm)
Firefox
in 345 toolboxes Firefox is the popular open source web browser from Mozilla
Skype
in 228 toolboxes Free/cheap Internet telephony and handy IM tool.
Delicious
in 173 toolboxes Web based social bookmarking lets you share online finds and discover new ones. Ground zero for tagging.
OpenOffice
in 203 toolboxes Full-featured open source office productivity suite, featuring word processor, spreadsheet, presentation, drawing and database packages; free MS Office replacement.
MediaWiki
in 85 toolboxes Powerful wiki software built to support the Wikipedia project
PurpleWiki
in 11 toolboxes Wiki with purple numbers, transclusions, and other cutting edge experimental features.
pbwiki
in 32 toolboxes Free hosted wiki software
Bloglines
in 30 toolboxes Web based RSS aggregator and blog reader
Flickr
in 160 toolboxes Web based photo sharing service
Audacity
in 96 toolboxes Free, open source software for recording and editing sounds.
TinyURL
in 45 toolboxes URL-shortener (for emailing and general usability)
SurveyMonkey
in 65 toolboxes Hosted online surveys
Picasa
in 55 toolboxes Picasa is software that helps you instantly find, edit and share all the pictures on your PC. Picasa also makes advanced editing simple, and makes it easy to share your pictures; you can email, print photos home, make gift CDs, and even post pictures.
YouTube
in 75 toolboxes Upload up to 100MB videos and embed them in your sites. Now with dedicated channels for nonprofits.
Wikispaces
in 15 toolboxes Simple, easy to use, free wiki service.
Wikipedia
in 131 toolboxes Wikipedia is a global and multilingual Web-based cooperative free-content encyclopedia.
LinkedIn
in 144 toolboxes Social networking for non-social purposes with a focus on professional development, networking for jobs and problem solving through the expertise of those in your extended network.
Google Calendar
in 76 toolboxes A free web-based calendar.
FreeConferenceCall
in 35 toolboxes Providing free conferencing services include audio, operator assisted, web, and data conferencing solutions.
Google Talk
in 36 toolboxes Google Talk enables you to call or send instant messages to your friends for free, anytime, anywhere in the world.
Remember the Milk
in 23 toolboxes On-line task manager.
Google Docs and Spreadsheets
in 83 toolboxes Now covered by Google Drive.
Web-based word processor and spreadsheet tool. Formerly Writely.
Doodle
in 33 toolboxes Meeting scheduler.
Social Source Commons
in 144 toolboxes The Social Source Commons is a “knowledge commons” that provides users with: a directory of software applications; links to relevant documentation, localization tools, services, user reviews; and a place to request tools/features.
Zotero
in 29 toolboxes Zotero is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources.
Google Reader
in 62 toolboxes Web-based RSS aggregator
MindManager
in 12 toolboxes Project management software.
SlideShare
in 26 toolboxes Upload and share powerpoint presentations.
