I liked this post, because the author articulated very well something that I have been thinking about: using Facebook at work. Right now Facebook, in many work environments, is seen as a time suck and time waster. I believe that it is an interesting tool that could be slightly refashioned to enhance the experience of work and also the information sharing at work.
clipped from apps.facebook.com

Why I still use Facebook, and other musings on social networks

Over the last few months it has become ever more fashionable to
bash social networks in general, and Facebook in particular; the
king is dead, long live the new king, blah blah. Just a few months
ago, you couldn’t walk around without bumping into a Facebook
conference, you couldn’t read around without bumping into a
Facebook article, you couldn’t talk around without bumping into a
Facebook conversation.

  blog it