Facebook - how many and when

Facebook - who founded it and how many use it

Facebook, formerly The Facebook, is a free-access social networking website that is operated and privately owned by Facebook, Inc. Users can join networks organized by city, workplace, school, and region to connect and interact with other people. People can also add friends and send them messages, and update their personal profiles to notify friends about themselves. The website's name refers to the paper facebooks depicting members of a campus community that some Universities and prep schools give to incoming students, faculty, and staff as a way to get to know other people on campus. Mark Zucherberg founded Facebook while he was a student at Harvard University. Website membership was initially limited to Harvard students, but was expanded to other colleges and Stanford Univeristy. It later expanded further to include any university student, then high school students, and, finally, to anyone aged 13 and over. The website currently has appx 518 million active users worldwide. Facebook is seeking more partnerships with wireless-service providers and phone makers, according to a statement from the company yesterday. About 23 percent of Facebook customers access the site using their phones, the company said. Facebook already has applications on devices such as Apple's iPhone and the BlackBerry, which let users post updates and send messages to their friends. The company is working with phone makers to tie Facebook more closely to mobile devices, allowing users to merge their phone contacts with their Facebook friends. Planet earth has 6,845,609,960 humans with 2 billion internet users and at the beginning of 2013 over 1 billion Facebook users Put another way: about 7% of the world's humans are on Facebook.

The figure is as of September and was disclosed Tuesday in Facebook's quarterly earnings report.

Facebook also says it had 584 million active users each day on average in September and 604 million using Facebook from a mobile device each month.
Here is a look at how the number of active users at Facebook has grown:
1 million — End of 2004.
5.5 million — End of 2005.
12 million — End of 2006.
20 million — April 2007.