Digg, boy king of all social driven media, announced today that they are dropping Google Ads in favor of advertisements served by Microsoft. Odd, that; Given Digg's user base leans heavily away from the Redmond giants, and the move is likely to irritate a generous portion of Digg's healthy surfer population.

The new deal with Microsoft will run over the next 3 years, with MS serving small contextual ads, much as Google does, or, rather, did. Microsoft is already serving up ads for Facebook, and losing Digg puts Google in a still dominant, but less enviable position.