It's how business people will interact soon. It will be play a major role in eLearning. PowWow wins first prize, runs on AOL or Microsoft or its own platform, and can be turned into a platform for conferencing. There are many others. Web-logs or blogs are annotated lists of pointers, updated by enthusiasts daily or weekly, for the sheer joy of turning others on to interesting stuff on the Web.
Bloggers build reputation by pointing out useful or interesting items.
This is gift-economy Knowledge Management in action. I learn as much from CamWorld and Tomalak's Realm as I do from the Wall Street Journal. If I ran the zoo, every business unit manager would maintain a blog for peers and comrades. Popularity is on the rise. For collaboration, turn to eGroups or Delphi for sharing documents, broadcasting messages, hosting discussions, and chat.