Google is not having the best possible week. Yesterday, an analyst representing J.P. Morgan cut his price target on the company's stock by $73, and today, an analyst with Oppenheimer followed suit, actually cutting his price target by an even-more-dramatic $115. Not all is lost. Jason Helfstein still feels Google's doing well in the U.S., and even believes the company deserves an "outperform" rating, which is about as good as it gets. Also,