Mark Zuckerberg founded, along with Eduardo Saverin, “The Facebook” in February 2004, while attending Harvard University, with support from Andrew McCollum and Eduardo Saverin. By the end of the month, more than half of students without a degree at Harvard were registered on the service. At that time, Zuckerberg joined Dustin Moskovitz and Chris Hughes to promote the site and Facebook has been expanded to Stanford University to Columbia University and Yale University.  This expansion continued in April 2004 with the rest of the Ivy League among other schools. At the end of the school year, Mark and Dustin moved to Palo Alto, Calif., to Andrew that he got a summer internship at Electronic Arts. They rented a house near Stanford University, where they joined Adam D’Angelo and Sean Parker. Andrew McCollum decided to leave EA to help full time on developing the Facebook site and “brother” Wirehog. In September, Divya Narendra, Cameron and Tyler Winkelvoss Winkelvoss, site owners HarvardConnection later called ConnectU, filed a lawsuit against Facebook claiming that Mark Zuckerberg had illegally used source code of HarvardConnection, which he had access. The action did not proceed. Also at that time, Facebook received approximately $ 500,000 from PayPal co-founder Peter Thiel, as an angel investor. In December the user base exceeded 1 million.
In May 2005, Facebook received $ 12.8 million in capital from Accel Partners. On August 23, 2005, Facebook facebook.com purchase the domain of $ 200,000 for AboutFace and definitely rule out the “The” from its name. At this time, Facebook was “redesigned” to receive an update that, according to Mark, left more user friendly. Also this month, Andrew McCollum returned to Harvard, but he remained active as a consultant and returning to work as a team during the summers. As before, Chris Hughes remained in Cambridge, while exercising his function as representative of the company. Then on September 2, Mark Zuckerberg launched Facebook’s interaction with secondary education. Although initially set to separate “communities” so that users needed to be invited to participate, within 15 days of the school systems no longer require a password to access (though still register on Facebook to demand). In October, the expansion began to reach small universities and institutions of post-secondary education (junior colleges) in the United States, Canada and the UK, and has expanded to twenty-one universities in the UK, the Instituto Tecnologico y de Estudios Superiores de Monterrey in Mexico, the University of Puerto Rico in Puerto Rico and throughout the University of Virgin Islands U.S. Virgin Islands. On December 11, 2005, universities in Australia and New Zealand have joined Facebook, increasing its size to more than 2,000 colleges and over 25,000 universities around the United States, Canada, Mexico, UK, Australia, New Zealand and Ireland.
On 27 February 2006, Facebook began allowing college students to add high school students at the request of users. A month later, on March 28, BusinessWeek magazine reports that a potential acquisition was being negotiated. Facebook reportedly declined an offer of $ 750 million, and estimated its cost at $ 2 billion. In April, Peter Thiel, Greylock Partners and Meritech Capital Partners invested an additional $ 25 million on the site. In May, the Facebook network has expanded to India, the Indian Institutes of Technology (IITs) and Indian Institutes of Management (IIM). The following month, Facebook had threatened to borrow up to $ 100,000 Quizsender.com for copyright infringement by copying “look and feel” of Facebook. On June 25, new features were added to the site to potentially attract additional revenue. It was a promotion done in partnership with the iTunes Store where members of the Apple Students would receive a free sample of 25 sounds in various genres of music each week until September 30. The proposed promotion make students more enthusiastic and familiar with the services. In mid-August, Facebook added universities in Germany and colleges in Israel to your network. On August 22, Facebook introduced Facebook Notes, a blog feature tag system, embedded images, among other features also allow the importation of blogging services Blogger, LiveJournal and Xanga. This feature subsequently won the opportunity to comment on the posts in the common systems “competitors”. On September 11, Facebook was opened for registration for the general public.
On May 10, 2007, Facebook announced a plan to add free classifieds on your website. This feature came to life on May 14 and was called Facebook Marketplace. Also in May, Facebook launched its API called Facebook Platform for developing applications for use on the site. In June, the partnership with the iTunes Store has continued offering free samples of music to the Apple Students group. In July, Facebook announced its first acquisition: Parakey, Inc, Blake Ross and Joe Hewitt. In August, the company made the cover of the annual special edition “College” Newsweek. On September 25 there is a rumor that Microsoft would be interested in buying part of Facebook; rumor was confirmed a month later with the purchase of 1.6% of Facebook for $ 240 million. A complete sale of Facebook is at present unlikely, said Mark Zuckerberg. On November 7, 2007, Facebook announced Facebook Ads, a marketing initiative that includes a system of partner sites to enable users to share information about your activities on them with friends on Facebook (Facebook Beacon), the possibility of companies staying pages Facebook various brands, products and services (Facebook Pages), a system of ad serving based on user profile and your friends and activity data (Facebook Social Ads) and a service of providing advertising to companies providing analytical data including performance metrics (Facebook Insights). With regard to privacy, Facebook states that “any personally identifiable information is shared with the advertiser to create a Social Ad” and that “Facebook users only see Social Ads to the extent that friends share information with them.” The Facebook Ads program replaces the previous Facebook Flyers On 30 November 2007 the Chinese billionaire Li Ka-Shing invests $ 60 million in Facebook.