Here are some Knowledge Links for today,

Five Best Instant Messangers

Figure out why an Application hangs

Forget Facebook everyone’s a Twitter

Protect your Privacy while Downloading

yahoo-puts-all-the-chips-on-the-table-time-for-somebody-to-fold

Open Social goes live on Orkut

Socialtext makes Wikis social Announce People and Dashboard

Product Pulse: Baidu Startpages, Sina Space And Community Search

Pageflakes Acquired By Live Universe

MindMeister - Collaborative Mind Mapping

AOL and Yahoo plan to strike a deal, Microsoft retaliates