Later they expanded it to , the schools, and. Facebook gradually added support for students at various other universities, and eventually to high school students. Since 2006, anyone who claims to be at least 13 years old has been allowed to become a registered user of Facebook, though variations exist in this requirement, depending on local laws. The name comes from the directories often given to American university students. It began selling to the public three months later. Facebook makes most of its revenue from that appear onscreen. Facebook can be accessed from a large range of devices with connectivity, such as , and computers, and. After registering, users can create a customized profile indicating their name, occupation, schools attended and so on. Additionally, users can report or block unpleasant people. Facebook has more than as of January 2018. Its popularity has led to prominent media coverage for the company, including significant scrutiny over privacy and the psychological effects it has on users. In recent years, the company has faced intense pressure over the amount of , and prevalent on its services, all of which it is attempting to counteract. Facemash attracted 450 visitors and 22,000 photo-views in its first four hours online. The Facemash site was quickly forwarded to several campus group list-servers, but was shut down a few days later by the Harvard administration. Zuckerberg faced expulsion and was charged by the administration with breach of security, violating , and violating individual privacy. Ultimately, the charges were dropped. Zuckerberg expanded on this initial project that semester by creating a social study tool ahead of an final exam. He uploaded all art images to a website, each of which was featured with a corresponding comments section, then shared the site with his classmates, and people started sharing notes. In 2003, there were no universal online facebooks at Harvard, with only paper sheets distributed and private online directories. I think it's kind of silly that it would take the University a couple of years to get around to it. I can do it better than they can, and I can do it in a week. Six days after the site launched, Harvard seniors , , and accused Zuckerberg of intentionally misleading them into believing that he would help them build a social network called. They claimed that he was instead using their ideas to build a competing product. The three complained to The Harvard Crimson and the newspaper began an investigation. They later filed a lawsuit against Zuckerberg, subsequently settling in 2008 for 1. Membership was initially restricted to students of ; within the first month, more than half the undergraduates at Harvard were registered on the service. In March 2004, Facebook expanded to the universities of , , and. It later opened to all colleges, , , , and gradually most universities in the United States and Canada. In mid-2004, entrepreneur —an informal advisor to Zuckerberg—became the company's president. In June 2004, Facebook moved its operations base to. It received its first investment later that month from co-founder. This website last appeared on April 8, 2005; from April 10, 2005, to August 4, 2005, this domain gave a 403 error. A high-school version of the site was launched in September 2005, which Zuckerberg called the next logical step. At the time, high-school networks required an invitation to join. Facebook also expanded membership eligibility to employees of several companies, including and Microsoft. In late 2007, Facebook had 100,000 business pages pages which allowed companies to promote themselves and attract customers. These started as group pages, but a new concept called company pages was planned. Pages began rolling out for businesses in May 2009. On October 24, 2007, Microsoft announced that it had purchased a 1. Microsoft's purchase included rights to place international advertisements on the social networking site. In October 2008, Facebook announced that it would set up its international headquarters in , Ireland. Almost a year later, in September 2009, Facebook said that it had turned cash flow positive for the first time. A January 2009 study ranked Facebook the most used social networking service by worldwide. The company announced 500 million users in July 2010, and according to its data, half of the site's membership used Facebook daily, for an average of 34 minutes, while 150 million users accessed the site by mobile. The company had slightly surpassed to become the third largest American web company after and. In early 2011, Facebook announced plans to move its headquarters to the former campus in Menlo Park, California. In March 2011, it was reported that Facebook was removing about 20,000 profiles every day for violations such as spam, graphic content, and underage use, as part of its efforts to boost. Statistics by showed that Facebook reached one trillion in the month of June 2011, making it the most visited website tracked by DoubleClick. According to a study, Facebook had in 2011 become the second-most accessed website in the U. Facebook began selling stock to the public and trading on the on May 18, 2012. Facebook filed their S1 document with the on February 1, 2012. The shares began trading on May 18; the stock struggled to stay above the IPO price for most of the day, but set a record for the trading volume of an IPO 460 million shares. The first day of trading was marred by technical glitches that prevented orders from going through; only the technical problems and artificial support from underwriters prevented the stock price from falling below the IPO price on the day. In March 2012, Facebook announced App Center, a store selling applications that operate via the website. The store was to be available on , devices, and mobile web users. Billboard on the building welcomes Facebook to NASDAQ, 2012 On May 22, 2012, the website reported that Facebook's lead underwriters, MS , JPM , and GS , cut their earnings forecasts for the company in the middle of the IPO process. The stock had begun its freefall by this time, closing at 34. A trading curb was used in an attempt to slow down the stock price's decline. Securities and Exchange Commission Chairman , and FINRA Chairman Rick Ketchum, called for a review of the circumstances surrounding the IPO. A class-action lawsuit was filed in May 2012 because of the trading glitches, which led to botched orders. Lawsuits were filed, alleging that an underwriter for Morgan Stanley selectively revealed adjusted earnings estimates to preferred clients. The other underwriters MS, JPM, GS , Facebook's CEO and board, and NASDAQ also faced litigation after numerous lawsuits were filed, while SEC and FINRA both launched investigations. It was believed that adjustments to earnings estimates were communicated to the underwriters by a Facebook financial officer, who used the information to cash out on their positions while leaving the general public with overpriced shares. Zuckerberg announced to the media at the start of October 2012 that Facebook had passed the monthly active users mark of one billion. The company's data also revealed 600 million mobile users, 219 billion photo uploads, and 140 billion friend connections. On April 3, 2013, Facebook unveiled , a user-interface layer for Android devices offering greater integration with the site. On April 15, 2013, Facebook announced an alliance across 19 states with the National Association of Attorneys General, to provide teenagers and parents with information on tools to manage social networking profiles. The letter F moved closer to the edge of the box. Following a campaign by 100 advocacy groups, Facebook agreed to update its policy on hate speech. The campaign highlighted content promoting domestic and sexual violence against women, and used over 57,000 tweets and more than 4,900 emails that caused withdrawal of advertising from the site by 15 companies, including Nissan UK, House of Burlesque and Nationwide UK. On June 12, 2013, Facebook announced on its newsroom that it was introducing clickable to help users follow trending discussions, or search what others are talking about on a topic. A July 2013 Wall Street Journal article identified the Facebook IPO as the cause of a change in the U. The Bureau of Labor Statistics reported that the average weekly wage in the county was 3,240, 107% higher than the previous year. However, a few days later, the , the official newspaper of the , dismissed the earlier report, reiterating the block on Facebook. Facebook was announced as a member of A4AI in October 2013, when the A4AI was launched. The A4AI is a coalition of public and private organizations that includes , and Microsoft. Led by , the A4AI seeks to make Internet access more affordable so that access is broadened in the developing world, where only 31% of people are online. Google will help to decrease Internet access prices so that they fall below the UN Broadband Commission's worldwide target of 5% of monthly income. The company celebrated its 10th anniversary during the week of February 3, 2014. In each of the first three months of 2014, over one billion users logged into their Facebook account on a mobile device. As part of the company's second quarter results, Facebook announced in late July 2014 that mobile accounted for 62% of its advertising revenue, which is an increase of 21% from the previous year. In November 2015, Zuckerberg prolonged period of paternity leave from 4 weeks to 4 months. On April 12, 2016, Zuckerberg revealed a decade-long plan
