"How To Facebook Your Brand"
http://www.fastcasual.com/article.php?id=15246

"Businesses Use Twitter To Communicate With Customers"
http://www.usatoday.com/money/industries/technology/2009-06-25-twitter-businesses-consumers_N.htm

"Does Your Social Class Determine Your Online Social Network?"
http://www.cnn.com/2009/TECH/science/10/13/social.networking.class/index.html

 

"Twitter Named Fastest-Growing Web Brand"