Facebook leads all site categories along with mobile

Facebook hasn’t always been the most popular service offering social sign-ins to other sites. But it claimed the first-place mantle over a year ago and has continued to strengthen its hold across more categories of sites, according to user management platform provider Janrain.

Media sites provide a particularly stark example. At the end of 2009, fewer than a third of social network users worldwide who used social sign-ins preferred Facebook. By Q3 2012, the percentage was up to 53%, compared with an essentially unchanged 21% share for Google and a dramatically lower 11% Yahoo! share.

via Facebook Solidifies Hold on Social Sign-Ins – eMarketer.