The developers of Farmville just got some splendid news from a Russian investment firm. The Digital Sky Technologies firm has agreed to invest $180,000,000 into the social gaming company. This news comes after Zynga announced that its social games are among the most popular on Facebook, with nearly one-third of the Facebook’s users playing their games monthly. According to Virtual Worlds News, Digital Sky Technologies will take a passive role in the company and will not hold a seat or have obser...