Twitter's public offering this week was the most buzzed-about tech IPO since Facebook's last May. But Twitter has not reached Facebook's level of influence just yet. In 2013 so far, Facebook's revenue tops $5.3 billion. Twitter, in turn, generated $422 million. When it comes to active monthly users, Facebook's base of almost 1.2 billion trounces Twitter's 232 million. More details: http://on.mash.to/1feLGdG
