During the last years, the method of logging into web sites using social network identity has become increasingly popular since it makes the account creation and login process easier and eliminates the need to remember more usernames or passwords. This, in return, provides one of the most important assets for the business owners – information about their clients such as rich demographic and psycho-graphic data.

Like in all fields, there’s competition between the social networks for being more preferred one for social identity logins. Let’s have a look at how the competition looks like as of Q4 2013.