Google Powers Up Google+ Social Sign-in

Once logged in this way, users will be prompted to specify with which Google+ circles they want to share content. The log-in blocks the so-called “frictionless sharing” that Facebook introduced in early open-graph releases, inviting harsh criticism from users and privacy advocates.

“Google+ doesn’t let apps spray ‘frictionless’ updates all over the stream, so app activity will only appear when it’s relevant (like when you’re actually looking for it),” wrote