Google is working on further integrating Google+ within its other services. One of the first steps it's taking in order to do that involves showing recent Google+ posts within Gmail.
According to Gmail engineering manager Mark Striebeck, a "Gmail people widget" will begin appearing when you view emails from individuals who happen to be sharing posts with you on Google+. That widget will show you their most recent Google+ posts — or at least the most recent posts which were shared with you or a Circle you're in.
This new feature is going to be rolled out to users gradually, so don't fret if you're not seeing it just yet.
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