Hi guys, Lately, one of my collaborators, a tech watcher, wrote this article about Facebook's IPO arguing that a Facebook bubble is in formation and this because its social marketing potential is being over-rated. To support his argument he mentions this 2009 study from the Harvard Business School which assess how much friends' purchases have an influence in a social network. I would like to know whether you agree or not with him and if any of you is planning to buy stocks. Many thanks in advance