The U.S. Court of Appeals for the Ninth Circuit recently approved class certification for advertisers of Google Adwords, reversing U.S. District Judge Edward Davila’s decision in January 2012. Those who purchased Adwords between 2004 and 2008 can now sue as a group to recover damages over what they claim are violations of California’s Unfair Competition and False Advertising Laws. Google allegedly charged Pulaski for ads that appeared on error pages and so-called parked domain pages …