Users can read write about themselves or their companies and include pictures and videos. They can also permit everyone, or only a few people, to see their Facebook pages.

This past summer, Facebook announced that it had has over 500,000,000 active users around the world. About half of them use the site everydayevery day. About 70% of all Facebook users are in countries outside the U. S. United States.

Mark Zuckerberg and three 3 friends started Facebook in 2004. He was a 2nd year student at Harvard University in Massachusetts. He began the project by illegally using the university's computer system. Harvard University charged him with violating several laws. Mr. Zuckerberg was almost forced to leave school, but . But the university withdrew the charges.