Bing search results will feature Facebook and Twitter updates.

Qi Lu, president of Microsoft's Online Services division, announced the partnership with the two social media companies today at the Web 2.0 conference in San Francisco. Microsoft also discussed it in the company's Bing blog.

The Twitter partnership, which you can try out here, will include Tweets that match search terms, allow users to rank them and filter out the most relevant Tweets.

Facebook updates that users have marked public will eventually also appear in Bing search results.

The announcement is significant in that Google does not have access to Facebook and Twitter updates right now. Google is dominant among search engines. Bing, which has about 10 percent of the market since Microsoft launched it in June, is in a distant third-place, and climbing slowly.

Update 4:10 p.m.: Turns out it's not an exclusive relationship. Google announced this afternoon on the company's blog that they too have a relationship with Twitter. That's just proof that people on Twitter will friend anyone.