We can't help but be kept awake at night, a constant state of worry hanging over our heads, wondering whether Zynga is financially surpassing the EAs and Activisions of the world. According to a Business Week report, it seems that Zynga recently did just that -- finally -- with SharesPost Inc. reporting Zynga's stock value at $5.51 billion, a full $290 million above EA's NASDAQ valuation of $5.22 billion.

ThinkEquity LLC analyst Atul Bagga told BW that Zynga's valuation "is not that crazy, given what's going on in the market," noting that growth prospects over the next three years help add value to the still nascent social game company. Bagga estimates Zynga's virtual goods profits will rise from approximately $1.6 billion this year to $3.6 billion by 2013, making Zynga a riskier, but potentially more lucrative investment. That is, of course, if people keep buying ... whatever it is they buy in Facebook games.

This article was originally published on Joystiq.