Social Networking Sites

Some interesting UK monthly visitor figures from last year: Facebook 24 million, Bebo 12 million, Windows Live 7 million, MySpace 7 million, Twitter 3 million, and Digg 1.7 million ; with Facebook growing YOY by +57%! (Source: Comscore World Metrix, May 2009)
In short Social Network Sites (SNS) are a truely significant source of traffic, both via organic techniques (company accounts, discussion groups, etc) and via ppc advertising.
...results of the new Lexmark cartridges ecommerce website design by Jam are looking very positive. The latest month showing a 300% increase on last years monthly averages.
Chris Law, Sales Manager, Lexmark International