Facebook may be accessed by a large range of desktops, laptops, tablet computers, and smartphones over the Internet and mobile networks.After registering to use the site, users can create a user profile indicating their name, occupation, schools attended and so on.
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.
According to The Harvard Crimson, the site was comparable to Hot or Not and used "photos compiled from the online facebooks of nine Houses, placing two next to each other at a time and asking users to choose the “hotter” person".
The Facemash site was quickly forwarded to several campus group list-servers, but was shut down a few days later by the Harvard administration.
Because of the large volume of data that users submit to the service, Facebook has come under scrutiny for its privacy policies.
Facebook makes most of its revenue from advertisements which appear onscreen, marketing access for its customers to its users and offering highly selective advertising opportunities. held its initial public offering (IPO) in February 2012, and began selling stock to the public three months later, reaching an original peak market capitalization of 4 billion.