Motley Fool thinks Pinterest could knock FaceBook off its perch.
When a better technology comes along, there is little cost for a consumer to switch – as they did, for example, from Yahoo! to Google around 2003. While Google+ was seen as the biggest threat to Facebook because of Google’s size and built-in user base, Pinterest demonstrates that a small player might be what Facebook should fear instead.
They don’t like Facebook as an investment.
Read more: http://www.fool.com/investing/general/2012/03/02/why-one-website-kills-facebooks-future.aspx