565 Owen Thomas 12/05/07 05:05PM Filed to: yelp yelp Gavin Newsom Politics Valleywag This image was lost some time after publication. Who knew Yelp, the San Francisco-based local reviews site, had such pull in City Hall? Hunky god-mayor Gavin Newsom has proclaimed December 5, 2007, as "Yelp Day." [Yelp Blog]