Facebook Turns Six; Hits 400 Million Users

By Joe Ciarallo Comment


Facebook turned six-years-old this week, and the birthday coincided with another notable milestone: 400 million users.

“Thanks again for making Facebook a part of your life. Happy sixth birthday to Facebook and our whole community. We look forward to building more things and continuing to serve you for many more years to come,” wrote founder Mark Zuckerberg in a blog post.