I've noted here before (1, 2, 3, and 4) that users of Wikipedia (the 7th most visited internet site in the world) may well be receiving a "bias bonus" of which they are unaware.
Well, here's Matthew Sheffield, president of Dialog New Media and the creator of NewBusters, with a particularly intriguing article which deftly describes the leftist nature of that bias, how Wikipedia is run...and what conservatives need to do to effectively counter its liberal effects.
Good work.