The Promise of Social Network Advertising
eMarketer
December 14, 2007
Nice data and perspectives for social networkers in the US:
Social networking is an Internet success story. This year, 37% of the US adult Internet population used online social networking at least once a month. That figure will rise to 49% in 2011.

Read the full article: http://www.emarketer.com/Article.aspx?id=1005688


