The 2008 Cone Business in Social Media Study presents the findings of an online survey conducted September 11-12, 2008 by Opinion Research Corporation among 1,092 adults comprising 525 men and 567 women 18 years of age and older. The margin of error associated with a sample of this size is ± 3%.
So far the best mind-mapping tool I've found thus far. It's fairly intuitive to use, and combines some really powerful collaborative and social tools, as well as awesome annotation capabilities. I'm currently using the web service to brainstorm forum categories and sub-categories for one of my clients.
Another social feed reader application. The site feels like a social bookmarking site, in that you can visit the popular page to see a list of the community's most active feeds.
I do like the UI, the ability to see avatars of people "shyfting" feeds, and the ability to import/export an OPML file. At first I didn't see any value in using this site as opposed to Netvibes, but after importing all of my feeds I've looking at this site in a whole new way.
A free web based video conference service for Jabber and GTalk users.