Google+ Sign-In Is Your New Key to Apps and the Web – Mashable

Google+ Sign-In Is Your New Key to Apps and the Web
Mashable
Share%2520specific%2520content%2520with%2520specific%2520people. Decide who, if anyone, can see your app activity — songs you listen to. Activity can be for your eyes only. Decide%2520who,%2520if%2520anyone,%2520can%2520see%2520your