1. Face book

2. HISTORY
 Main articles: History of Face book and Timeline of Face
book
 Mark Zuckerberg wrote Face mash, the predecessor to Face
book, on October 28, 2003,
 According to The Harvard Crimson, the site was
comparable to Hot or Not, and "used photos compiled from
the online face books of nine houses,
 placing two next to each other at a time and asking users to
choose the 'hotter' person.

3. facebook username
 On June 13, 2009, Facebook introduced a "Usernames"
feature,
 Many new Smartphone soffer access to Facebook services
through either their Web browsers or applications.
 An official Facebook application.
 Nokia and Research In Motion both provide Facebook
applications for their own mobile devices.
 More than 425 million active users access Facebook
through mobile devices across 200 mobile operators in 60
countries.


4. website
 Main articles: Facebook features and Facebook Platform
 Profile shown on The facebook in 2005
 User Profile
 Users can create profiles with photos, lists of personal interests,
contact information, and other personal information.
 Users can communicate with friends. message and a chat feature.

5. Prevacy setting
 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.

6. FACEBOOK NOTES
 Facebook Notes was introduced on August 22, 2006, a blogging
feature that allowed tags and embeddable images.
 Users were later able to import blogs from Xanga, LiveJournal
Blogger, and other blogging services. During the week of
 April 7, 2008, Facebook released a Comet-baseinstant messaging
application called "Chat" to several networks.
 Facebook launched Gifts on February 8, 2007, which allows users
to send virtual gifts to their friends that appear on the recipient's
profile.
 Gifts cost $1.00 each to purchase, and a personalized message can
be attached to each gift.[ On May 14, 2007.
 On July 20, 2008, Facebook

7.  Facebook Username
 On June 13, 2009, Facebook introduced a "Usernames"
feature, whereby pages can be linked with simpler URLs
such as http://www.facebook.com/facebook instead of
http://www.facebook.com/profile.php?id=20531316728.[96]
Many new smartphones offer access to Facebook services
through either their Web browsers or applications. An
official Facebook application is available for the operating
systems Android, iOS, and webOS. Nokia and Research In
Motion both provide Facebook applications for their own
mobile devices. More than 425 million active users access
Facebook through mobile devices across 200 mobile
operators in 60 countries.[97]


8. facebook message
 Facebook Messages
 On November 15, 2010, Facebook announced a new
"Facebook .
 Messages" service. In a media event that day, CEO
Mark Zuckerberg said.
 February 2011, Facebook began to use the Calendar
microformat to mark up events, and the hCard
microformat for the events' venues, enabling the
extraction of details to users' own calendar or mapping
applications.[

9. video calling
 On July 6, 2011, Facebook launched its video calling
services using Skype as its technology partner. It allows
one to one calling using a Skype Rest API.

10. VOICE CALLS
 Voice Calls
 Since April 2011 Facebook users have had the ability to
make live voice calls via Facebook Chat, allowing users
to chat with others from all over the world. This
feature, which is provided free through T-Mobile's new
Bobsled service, lets the user add voice to the current
Facebook Chat as well as leave voice messages on
Facebook.

11. like&dislike
 Like button
 The Like button is one of Face book's social plug-ins. It was
launched on April 21, 2010.
 Dislike button
 The 'dislike button' for Facebook has become available to users
as a file download for web browsers on numerous sites (such as
the Mozilla.org website) which they can use as an add-on on
their web browsers to 'dislike' people's posts and comments.