Facebook Inc. (NASDAQ: FB), LinkedIn Corporation (NASDAQ: LNKD), Zynga Inc. (NASDAQ: ZNGA), CrowdGather Inc. (OTCBB: CRWG) and other social media companies have a wide array of valuations in the public markets. In this article, we’ll compare those valuations to determine the most underpriced and overpriced plays in the burgeoning industry.

Take a look at some popular social media firms from a comparative view of P/E ratios, Price-to-Book, Revenue Growth and Market Caps.

Zynga is moving fast to snap up one of the most buzzed-about gaming apps since "Angry Birds." The company said Wednesday it is buying OMGPop, the maker of hit game "Draw Something."

Financial terms of the deal were not disclosed.