San Diego-based StockTwits, the finance discussion and microblogging site headed by Howard Lindzon, has inked a deal with Microsoft's search engine, Bing, the power parts of the search engine's Bing Finance site. According to Microsoft, it is tapping StockTwits to include real-time, financial information on the site; among those features is the inclusion of an "Hourly Buzz" tab tracking interest in stocks, plus links to messages from StockTwits about those stocks. The addition came along with a broader expansion of content on Bing, which includes content from Seeking Alpha, TheFlyOnTheWall, and Trefis.