Based on analysis of use of a content-sharing widget, more people use Facebook to share links than any other service, including e-mail.

According to AddToAny, creators of content-sharing and Web publishing tools, including a popular social media widget, Facebook accounts for 24% of uses of the…

Although US social network spending will slide 3% this year, non-US social network advertising spending is forecast to grow 27% in 2009. That is 9% growth in worldwide spending in 2009, to $2.2 billion.

Strong social networks outside the US include mixi in Japan, Cyworld in…