Alan ShimelNetwork World

RockMelt: Who Needs Yet Another Browser?

Analysis: RockMelt is based on Chromium and adds social networking, but it's still not open.

Reclaim Your Privacy From Facebook has released an open source scanner that helps make Facebook more private -- without requiring you to ditch your friends.

Digg Takes Pride in Open Source Usage, Contributions

Like many of its social networking brethren, Digg is not only built on open source but is a big contributer to open source as well.