Facebook was launched in February 2004. This popular social networking site was founded by Mark Zuckerberg. Facebook has over 750 million users. In Facebook a user must set up a personal profile, adding other friends as their Facebook friends, sending messages, passing automatic notifications when they update their Facebook profile, make comments on their friends’ profile. Users can join interesting groups which are formed within the Facebook site.
The latest entry to the social networking realm is Google+, which is also another invention from Google Inc. In Google+ each user can maintain their friends into various circles like relationships, family, friends etc.