Facebook leads the social logins provider game, especially in regions outside US.
Social Logins Market Share
Facebook : 55%.
G+ : 27%
Yahoo: 11%.
Twitter : 5%.
LinkedIn : 1%.
Others : 1%.
In Q2 2014, Facebook has made incremental gains, Google+ has stood relatively steady for several quarters and maintained its stance as the second most popular identity provider. Yahoo, meanwhile, continued losing share-of-logins, approaching the single digits (11%) in login percentage. [source: Gigya]
