We want to bring you a great experience across all Google products which, for Gmail and Contacts, means understanding what you care about and delivering it instantly. With that in mind, we’re introducing some new integrations with Google+ that we think will make Gmail and Contacts even better. If you use Google+, you can now grow your circles, filter emails and contacts by circles, keep all your contact information up-to-date automatically and share photos to Google+, all right from Gmail and Contacts.
Grow your circles from your email
Now when you open an email from someone on Google+, you can see the most recent post they’ve shared with you on the right-hand side of the conversation. If they’re not in your circles yet, it’s easy to add them straight from Gmail.

Find information from the people you care about most
Looking for the info on an upcoming family holiday gathering but can't remember who sent it? If you've spent time building your Google+ circles, you can now quickly use them to filter your mail, saving yourself from having to sift through that pile of daily deal emails and newsletters. You can see messages from all of your circles at once or from each individual circle. And if you want, you can show circle names on emails in your inbox. Contacts can also be filtered by circles, making it easier to view your social connections.
