Scott Kessler, head of technology sector equity research at Standard & Poor’s, talks about Google Inc.'s second-quarter sales reported yesterday and outlook for the largest Internet-search company.   Sales, excluding revenue passed on to partner sites, rose to $6.92 billion, which topped the $6.57 billion average estimate of analysts surveyed by Bloomberg. Kessler speaks with Erik Schatzker on Bloomberg Television's "InsideTrack."