Here's a somewhat lengthy article by Brian Solis, who "...is Principal of FutureWorks, an award-winning PR and New Media agency in Silicon Valley... AND ...is among the original thought leaders who paved the way for Social Media. He's a co-founder of the Social Media Club and a founding member of the Media 2.0 Workgroup."
Great article, LOTS of comments:
-------------------------------------------------------------------------------Unveiling the New Influencers-----------------------------------------------------------
Enjoy!
Mitch