Google's track record in terms of social media is not pretty. Consider the facts: Orkut never caught on in the U.S., Lively was killed after about six months, and so far, Buzz hasn't done much besides make people freak out. Still, Google's reportedly forging ahead by looking to hire a "Head of Social." Liz Gannes obtained a recruiting letter describing this position, and Google was at least realistic in terms of expectations. Part of the letter acknowledged,