OneRiot’s real-time search engine has added Facebook data to its results, giving the startup company an enormous boost to its real-time search API. OneRiot is an advertising marketplace and real-time search engine that already indexes data from Twitter, Digg, MySpace and other social networks.

Searches through the OneRiot API will now include publicly shared links from Facebook’s nearly half a billion users. The company’s real-time search results are based on a social resonance algorithm it calls PulseRank, provided through partnerships with both Yahoo! and Microsoft. OneRiot also has an advertising service called RiotWise, which can be integrated into Web-based and mobile apps through the enhanced API.

It’s a significant development in the emerging real-time Web marketplace, coming just on the heels of Google’s release of its amped-up search index called Caffeine. Scoopler, Topsy and Tweetmeme are other examples of up-and-coming players in the real-time search space, but OneRiot’s impressive API now powers over 100 real-time applications.