Facebook is used by members for a variety of purposes. It is mainly used by individuals who wish to stay connected with, or reconnect with, people that they know offline. As well as maintaining a personal profile and posting messages on their “wall,” users can upload photo albums and videos, share links, write long notes, send private messages to friends, text and video chat, and play games.
Twitter allows users to post 140 character messages, or tweets, and follow the messages of other users on their Twitter feed. It is mainly used to communicate with other individuals with similar interests, regardless of whether users know one another off Twitter, and to follow updates from celebrities. Users can upload photos, share links and send private messages to people they follow.