A patent dispute over paid listings between Yahoo and FindWhat has ended in a hung jury, with the judge declaring a mistrial. More information from CNN/Money in Search smackdown ends in hung jury. Some more background on the case can be found here from ClickZ. Yahoo and Google settled
Postscript: See Yahoo On Patent Lawsuit: Jury Was With Us for news on the jury agreeing on patent infringement issues but not other aspects of the case.