Users can create profiles with photos, lists of
personal interests, contact information, and other personal
information. Users can communicate with friends and
other users through private or public messages and a chat
feature. They can also create and join interest groups and
"like pages" (formerly called "fan pages", until April 19,
2010), some of which are maintained by organizations as a
means of advertising. To allay concerns about privacy,
Facebook enables users to choose their own privacy
settings and choose who can see specific parts of their
profile. The website is free to users, and generates revenue
from advertising, such as banner ads. Facebook requires a
user’s name and profile picture (if applicable) to be
accessible by everyone. Users can control who sees other
information they have shared, as well as who can find
them in searches, through their privacy settings.