Mark Zuckerberg and his mission

Zuckerberg launched Facebook from his Harvard dormitory room on February 4, 2004.[23][24] An earlier inspiration for Facebook may have come from Phillips Exeter Academy, the private high school from which Zuckerberg graduated in 2002. It published its own student directory, "The Photo Address Book", but which students referred to as "The Facebook". Such photo directories were an important part of the student social experience at many private schools. With them, students were able to list attributes such as their class years, their proximities to friends, and their telephone numbers.

Once at college, Zuckerberg's Facebook started off as just a "Harvard thing" until Zuckerberg decided to spread it to other schools, enlisting the help of roommate Dustin Moskovitz. They first started it at Stanford, Dartmouth, Columbia, New York University, Cornell, Brown, and Yale, and then at other schools that had social contacts with Harvard.

Zuckerberg moved to Palo Alto, California, with Moskovitz and some friends. They leased a small house that served as an office. Over the summer, Zuckerberg met Peter Thiel who invested in the company. They got their first office in mid-2004. According to Zuckerberg, the group planned to return to Harvard but eventually decided to remain in California.[attribution needed] They had already turned down offers by major corporations to buy out Facebook. In an interview in 2007, Zuckerberg explained his reasoning:

It's not because of the amount of money. For me and my colleagues, the most important thing is that we create an open information flow for people. Having media corporations owned by conglomerates is just not an attractive idea to me.

He restated these same goals to Wired magazine in 2010: "The thing I really care about is the mission, making the world open."Earlier, in April 2009, Zuckerberg sought the advice of former Netscape CFO Peter Currie about financing strategies for Facebook.

On July 21, 2010, Zuckerberg reported that the company reached the 500 million-user mark. When asked whether Facebook could earn more income from advertising as a result of its phenomenal growth, he explained:

"I guess we could ... If you look at how much of our page is taken up with ads compared to the average search query. The average for us is a little less than 10 percent of the pages and the average for search is about 20 percent taken up with ads ... That’s the simplest thing we could do. But we aren’t like that. We make enough money. Right, I mean, we are keeping things running; we are growing at the rate we want to."