Facebook was created in 2004 by Mark Zuckerberg and quickly spread to colleges and universities in the United States. By 2009, Facebook had grown to over 175 million users worldwide and was available in 60 languages. Facebook generated over $150 million in revenue in 2007 through advertising deals with major companies. However, Facebook's use of targeted advertising that shares users' personal information and the site storing over 1 billion photos has raised privacy concerns.