In a rare and perhaps temporary  setback for Google, a federal district court judge has refused to dismiss a lawsuit challenging Google's AdWords program.   U.S. District Court Judge Jeremy Fogel ruled earlier this week that the lawsuit filed by American Blind & Wallpaper Factory may proceed, noting that public has an interest in whether AdWords, the company's popular pay-per-click advertising system, violates U.S. trademark law.  Google has already prevailed in similar cases brought by GEICO and Rescue.com.    CNet article here.  Goldman's summary here.