Most Comprehensive Web 2.0 List ever:
Most Comprehensive Web 2.0 List – KNOWLEDGE 2.0
Blinkbits – Share knowledge. http://www.blinkbits.com/
Brainreactions – Participate in brainstorms & share ideas. http://www.brainreactions.net/
Echosign – Contract management. http://www.echosign.com/public/compose
Grokker – Enterprise search & knowledge management. http://www.grokker.com/
Hanzoweb – Bookmark, tag & share knowledge online. http://hanzoweb.com/
Jots – Information sharing. http://www.jots.com/
Kaboodle – Information sharing. http://www.kaboodle.com/
Oyogi – Share Q&A. http://www.oyogi.com/
Postgenomic* – Share & rank life science knowledge. http://www.postgenomic.com/
Pubsub – Match your interests with new info. http://www.pubsub.com/
Root/vaults* – Store, manage & share knowledge online. http://www.root.net/vaults
Squidoo – Share knowledge. http://www.squidoo.com/
Wondir – Share Q&A. http://www.wondir.com/
Yahooanswers – Share Q&A. http://answers.yahoo.com/
Cooperationcommons – Knowledge base re cooperation & collective action. http://www.cooperationcommons.com/