Created by Mark Zuckerberg while in Harvard, Facebook Inc. is the company that runs the Facebook social networking website. Facebook currently has over 845-million users who use it daily to interact with others online. It was first released on February 4th, 2004 under the name Thefacebook, and in June Zuckerberg moved the head of operations to Palo Alto, California, dropping out of school. Sean Parker became the CEO at that time and a year later they bought the facebook.com domain name. On Febraury 1, 2012 Facebook filed for an IPO and is estimated to be valued between $75 and $100-billion.