Social Media Stocks on Watch; Zynga Inc. (ZNGA), Facebook Inc. (FB), Groupon Inc. (GRPN), LinkedIn Corp. (LNKD), Renren Inc. (RENN), SINA Corp.

Shares of Zynga Inc. (NASDAQ: ZNGA), a social gaming company engaged in the development, marketing and operation of online social games as live services played over the Internet and on social networking sites and mobile platforms, rose marginally in trading on Friday.

Continue reading Social Media Stocks on Watch; Zynga Inc. (ZNGA), Facebook Inc. (FB), Groupon Inc. (GRPN), LinkedIn Corp. (LNKD), Renren Inc. (RENN), SINA Corp.