Yahoo! executives announced today that they have purchased Citizen Sports, a San Francisco based company that specializes in social networking and mobile applications for sports fans (judging by the company’s Web site, even if those fans happen to love….arena football!).

From the press release:

“Yahoo! is in a unique position to combine our deep expertise in content and aggregation technology to offer a highly personalized social experience,” said Bryan Lamkin, senior vice president, Consumer Products Group, Yahoo!. “Sports has been among the earliest online categories to experience rapid social proliferation, and the combination of Citizen Sports leading products with our world-class sports experience on Yahoo! Sports is a win-win for sports fans globally.”

Millions of people across the globe use Citizen Sports’ array of social and mobile products to play fantasy sports, fill out brackets, check live scores and read up-to-the minute news on sports including football, hockey, soccer, baseball, racing, rugby, hockey and cricket. Yahoo! Sports’ content will be integrated into these products, creating a seamless experience for sports fans wherever they are. On Yahoo! Sports, users will be able to broadcast their allegiances, create or join a conversation with friends and fans and cheer for their teams through Citizen Sports’ applications. This integration will further transform Yahoo! into a more personally relevant experience, drive deeper user engagement and create opportunities for advertisers to interact with audiences in new environments.

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