Facebook has yet another reason to celebrate about this week apart from celebrating it’s 6th anniversay. According to Facebook founder Mark Zuckerberg, the No. 1 networking-site is hitting 400 million membership this week. “Today we’re celebrating our sixth birthday, and this week there will be 400 million people on Facebook. Just one year ago we served less than half as many people,...

The staggering usage growth of Facebook continues unabated as the company achieves yet another milestone – 100 million U.S. unique visitor in November. Accoridng to comScore, this is the first time the social networking site has exceeded that monthly mark. Just recently, Aol celebrated its re-emergence as an independently-traded company. It was the fourth largest Website in the U.S. until last...