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I heard that some people also use Google, Yahoo, MS Live and other services besides Facebook.

• Tichy 16y ago
  Not for logging in, though. And in the future more and more sites could turn to Facebook as their single login solution, because they solve the tracking consent problem.
  • code_duck 16y ago
    Facebook is popular for that, but personally I use Twitter, Google and Yahoo (via their openid services) for login to several sites, including this one. Facebook has by no means won the contest to provide a 'single login'. I don't think anybody is going to. Facebook is my last choice for signing into a site, as they give the site access to more data then is needed.