Facebook (www.facebook.com) holds 2nd rank in the United States and it is the largest and most popular social networking site in the world. Facebook was launched on February 4, 2004, by Mark Zuckerberg with his other friends and it had over 1.3 billion active users all over the world as of 2014 according to Alexa. Facebook gives many facility to its user like common – interest user groups, groups organized by workplace, school or college or categorized friends in lists as “People from work” or “Close friends” and it also gives chat facility and recently it has started to give taking facility via Skype etc.

According to Wikipedia as of January, 2013, the countries with most Facebook users

• United States with 168.8 million members

• Brazil with 64.6 million members

• India with 62.6 million members

• Indonesia with 51.4 million members

• Mexico with 40.2 million members