Comments on: Percentage of U.S. Adults Using Social Networking Sites Increases from 15% to 33% in 2 Years

Comments on: Percentage of U.S. Adults Using Social Networking Sites Increases from 15% to 33% in 2 Years http://johnvasko.com/2009/08/04/percentage-of-u-s-adults-using-social-networking-sites-increases-from-15-to-33-in-2-years/#utm_source=feed&utm_medium=feed&utm_campaign=feed News, Trends, and Experiences in Developing Online Communities Mon, 18 Apr 2011 04:01:25 +0000 hourly 1 http://wordpress.org/?v=3.2.1