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, we can create a user profile indicating our name, occupation, schools attended and so on. We can add other users as "friends", exchange messages, post status updates and digital photos, share digital videos and links, use various software applications ("apps"), and receive notifications when others update their profiles or make posts.
Additionally, we may join common-interest user groups organised by workplace, school, hobbies or other topics, and categorise our friends into lists such as "People From Work" or "Close Friends".
In groups, editors can pin posts to top.
Additionally, we can complain about or block those people whom we find to be unpleasant people.
Because of the large volume of data that we submit to the service, Facebook has come under scrutiny for its privacy policies.
Facebook makes most of its revenue from advertisements which appear onscreen.