Google contacts
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Now Email or Contact Your Google+ Connections Right From Gmail
This is a cool new feature coming soon between Google+ and Gmail. You may call this Google+ messaging through Gmail. (more…)
Google Contacts Gets Google+ Integration : View Your Contacts Phone, Email, Address, Etc., Details While Viewing His/her Google+ Profile
Contacts (contacts.google.com) is the latest google product to get Google+ integration and so the social features. Watch your contacts details appear