SiliconVallaeys.com

Google's users tend to spend more money on online purchases than Yahoo's users. Is there a similar split in social networks? Seems so based on this March 2009 data from comScore Media Metrix showing the online buying power index of visitors to social networks compared to the total internet population. While Twitter's audience is still relatively small compared to Facebook and MySpace, it seems to have attracted a lot of the big spenders in the past year.