Diane Alter: The excitement Tuesday among Facebook Inc. (NASDAQ:FB) stock investors and industry followers over the company’s mysterious event was quickly doused after the social networking giant announced the launch of a Facebook graph search – a kind of closed social search engine. Read more…

NASDAQ:SOCL

Eric Dutram: As the economy starts to improve, the IPO market has become increasingly popular among a variety of investors. Many of these newly public companies are either in the tech or social media space, giving investors access to firms that are in one of the few high growth areas in the developed world. Read more…

NASDAQ:SOCL, NYSE:EIPL, NYSE:EIPO, NYSE:FPX