In 2017, Facebook generated 40.6 billion U.S. dollars in revenues, most of which derived from advertising sales. The amount of data the company collects from its users enables it to sell well-targeted advertising space, which is why Facebook’s advertising business is expected to grow vastly in the years to come. Facebook filed for an initial public offering in February 2012 and made its stock market debut on May 18. Raising 16 billion U.S. dollars at a valuation of 104 billion U.S. dollars, Facebook's IPO was among the largest IPOs of all time, dwarfing those of other Internet companies, such as Google and Amazon.
Facebook allows its users to create their own Facebook page, add friends and share personal updates and photos. According to Facebook user statistics, a very popular feature of Facebook is the “like button”. Designed to facilitate feedback and recommendations to friends, it is now integrated into virtually every major website, especially those offering content. The “like button” also opened the door for marketers to benefit from Facebook’s popularity. Facebook enables brands to address their fans directly, which is why marketers put a lot of effort into generating Facebook fans. Major companies like Disney, Coca Cola and Nike have tens of millions of Facebook fans according to this brand ranking.
In recent years, Facebook has repeatedly drawn criticism for its stance on user privacy. The terms of privacy and its controls have often been tweaked and are regarded as overly complicated by many users. A survey among internet users in the U.S. showed that many of the respondents were very concerned about the privacy of their personal data on Facebook and have taken steps to reframe their relationship with the social network. One of these steps was sharing less content with friends and followers due to privacy concerns.
In September 2012, Facebook purchased photo-sharing app Instagram for 1 billion U.S. dollars. Other notable acquisitions include VR gaming headset Oculus Rift and mobile messaging app WhatsApp, which was purchased for 19 billion U.S. dollars in February 2014.