Where have all the Google Buzzers (or is it Buzzees) gone? New research from Chitika and Google's own insights tool shows that Google Buzz, the controversial social network app, has quieted down since its Feb. 9 launch and subsequent privacy brouhaha. Upon launch, the Chitika network saw some1,500 searches for the term "Google Buzz," approximately 15 times the number of searches for "Twitter." Buzz rocketed to glory at launch, but Chitika said searches fell to 580 on Feb. 10,