The Social Networking Universe?

Not. I'm spending more time building profiles than I am being social on these sites. Ken at KenRadio.com provides these snazzy IQ media reports daily. A couple of days ago he distributed " Social Network Marketing, the Sky is the Limit" (Note: You may have to login to view it, Ken is building his own social network complete with yet another profile to fill out, his numbers say he has 15,000 folks). He did an amazingly comprehensive chart of 90 social networking sites with a brief description of their type and their user number. I don't know where he got these numbers you will have to ask him. I sorted them by user number and excluded the "unknowns" and networking sites exclusively for specific geographic or demographic users. I took off any sites with less than 1,000,000 members since that seems to be the magic number for advertising viability. That seems to be his focus, not membership premiums which I'd just like to give a shout out to Flic...