Go go GOOG. Google is expected to report U.S. advertising revenues of $4 billion for 2006-one quarter of the $16 billion to be spent and a 65 percent jump from last year. No company has ever acounted for that much Web advertising. The loser? Yahoo which reported disappointing quarterly earnings and earned a stock downgrade from Elie Wiesel (via Blogging Stocks). Also resurfacing this week are rumors of a Yahoo buyout: will it be Microsoft, News Corp or Time Warner? And is Yahoo CEO Terry Semel about to join the dead pool asks Valleywag. The Friendster tell-all story was finally told this week and it’s not pretty, says TechCrunch. Friendster turned down a $30 million buyout offer from Google in 2003 and everything went downhill from there. Though there’s a lot of finger pointing in the story, there’s also a lot to learn from the site’s bust, says Signal vs. Noise, including: accepting too much venture capital; spending too much time on features instead of performance; and solving exciting potential problems instead of real mundane ones. Interestingly, Friendster choked even though it was initially backed by the PayPal Mafia.