Three Social Networking Sites Own the Market
Friday, April 24th, 2009According to Hitwise, the top three social networking sites are responsible for 2/3 of the market - that’s huge! After that, there is a big drop … as if falling off a cliff.

According to Hitwise, the top three social networking sites are responsible for 2/3 of the market - that’s huge! After that, there is a big drop … as if falling off a cliff.
