Baidu May Have Sold Ads To Unlicensed Clinics By: MarketMinute.com Stock News November 17, 2008 at 16:56 PM EST China's state television network reported that search engine Baidu.com Inc. (Nasdaq: BIDU) may have sold ads to unlicensed health clinics sending shares of the Chinese search engine plummeting $44.80 to close at $134.09. Related Stocks: Baidu.com SP ADR