Users can add other users as "friends", exchange messages, post status updates, share photos, videos and links, use various software applications ("apps"), and receive notifications of other users' activity.
Additionally, users may join common-interest user groups organized by workplace, school, hobbies or other topics, and categorize their friends into lists such as "People From Work" or "Close Friends".
I can do it better than they can, and I can do it in a week." In January 2004, Zuckerberg began writing code for a new website, known as "The Facebook", with the inspiration coming from an editorial in the Crimson about Facemash, stating that "It is clear that the technology needed to create a centralized Website is readily available ...
These started as group pages, but a new concept called company pages was planned.
On October 24, 2007, Microsoft announced that it had purchased a 1.6% share of Facebook for $240 million, giving Facebook a total implied value of around $15 billion.
On May 1, 2018, Facebook announced its plans to launch a new dating service.
According to Mark Zuckerberg: "There are 200 million people on Facebook that list themselves as single, so clearly there's something to do here".
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.