Editor's note : The following guest post is by author Peter Sims In late April, JP Morgan invited me to a “thought leaders dinner” to discuss the latest goings on in Silicon Valley and digital media. In a private room at the swanky San Francisco restaurant Kokkari, there were about 20 of us seated around a long rectangular table, including venture capitalists from prominent firms, highly successful entrepreneurs, and a handful of people from J.P. Morgan, including Jimmy Lee, the firm’s well-known Vice Chairman, who sat at the head of the table. (I was, like Kevin Costner’s character in Bull Durham Crash Davis, “the player to be named later.”) Anyhow, after about an hour and a few glasses wine, Jimmy raised the main question he was curious about: “I want to know from each of you: which company would you go long on and which would you short?” We could pick any timeframe. And, as it turned out, while the long picks varied widely from Amazon to Yahoo!, 12 of the 15 ‘thought leaders’ shorted Google. Jimmy was surprised, virtually astounded: “Wow!” he exclaimed, “You guys are really negative on Google, huh?” I, too, was surprised. Google has been, after all, the most successful company in recent history (in terms of churning out growth and profits), led by Eric Schmidt, a well-respected CEO. And, we’ve seen book after book about why everyone should be more like Google. But, the opinions in that room were not based on past performance. They were anticipating Google’s future. Below are the reasons people cited for shorting the company (which, interestingly, were fairly diverse):