In the past 3 years or so, we have seen a number of social networking companies going public: Facebook (NASDAQ:FB), Groupon (NASDAQ:GRPN), LinkedIn (LNKD), and Angies List (ANGE). Three of these four companies have provided an excellent return on investment, Groupon is the outcast. Groupon’s Shares has been struggling to move out of the $10 range. It has recently broken the $10 mark. However, what all these companies have in common is that the market is paying very high multiples for them. Lets look at these companies individually and assess their potential as well as their weaknesses. I will present this in a series of four posts. So lets get started.