The Members Forum

Facebook's astronomic rise, staggeringly large user-base, and world's youngest self-made billionaire CEO make it one of the most fascinating companies around today.

The 26-year-old discusses his empire in an exclusive interview with Diane SawyWhile everyone knows the basics about the service's Harvard dorm room origins, we've delved a little deeper to find out more interesting snippets of info.

Here are 10 facts you might not know about Facebook, so read on.

1. Al Pacino's Face Was on the Original Facebook Homepage

Prior to a major homepage redesign back in 2007, Facebook's front page used to feature a man's face partly obscured behind a cloud of binary code.

Dubbed the "Facebook guy," it was not known who the mystery man was — until recently. David Kirkpatrick has revealed in his book The Facebook Effect that the image is a manipulated photo of Al Pacino created by a friend and classmate of Mark Zuckerberg.

ABC News has the details HERE!