Image Tools: Flickr, Picasa Blogging Tools: WordPress, Tumblr,
Blogger, TypePad, MovableType Micro-Blogging Tools: Twitter,
Yammer, Identica, Laconica Wiki Tools: PBWiki, Wikispaces,
Wikidot, WetPaint Online Chat: AIM, MSN, Yahoo!, GTalk, Skype,
Meebo, Campfire Social Networks: Facebook, MySpace, LinkedIn,
Ning Online Broadcasting: Ustream.tv, Mogulus, Qik, Kite.tv
Audio/Video: YouTube, TeacherTube, iTunesU, Hulu, Vimeo Web
Sharing: Digg, Reddit, StumbleUpon Social Bookmarking: Delicious,
Magnolia, Diigo Online Applications: Google Apps, Microsoft
Office Live, Zoho Apps, EtherPad, Basecamp, Backpack (from 37
Signals)
from Michael
Farmer