Since it’s launch earlier this year I have been watching Ragan’s new networking site, myragan with interest.
Following the amazing number of new joins in the first days, the site now seems to have settled down to provide a good selection of tools, resources and dialogues.

My profile over there:
http://www.myragan.com/Ragan/jonathanchamp

As an aside, the launch of the site coincided with a review of internet policies by the organisation I am working with currently – and prompted debate as to the barring of social networking sites that have a primary business or professional purpose. The result is that our firewall does allow access to the site, but not to the videos.