A new way to send emails without remembering the recipient's address.

Google has further integrated its Google+ social network and Gmail by adding a feature that automatically suggests Google+ contacts as Gmail users type in their email recipients. In other words, you can send emails to anyone without even knowing their Gmail address, and the recipient can email you back.

This feature will be rolled out in the next few days to all Gmail email users who also have a Google+ social media profile.

Gmail will automatically suggest to Google+ users that the email sender has added their Circles on the social network (Circles is a term Google uses to refer to connections on the Google+ network). However, email senders will not see the contact's Google+ email address automatically suggested unless that person replies to the message, and messages from Google+ users will not appear in your own Circles but will instead appear on the Social tab of your Gmail account.

Google+ users can control who can contact them from Gmail with four options. Specifically, they can choose to opt out entirely, so they won't appear in Gmail's auto-suggestions. You can restrict the feature to only allow people who have been added to your Circles. Users can also allow connections with specific people in your Circles. The final option is to open this feature to everyone on Google+.

The purpose of this new feature is to make it easier for Google+ users to communicate through Gmail.

Google has repeatedly stated its intention to integrate Google+ more broadly and deeply into its services, websites, and web applications so that they can function as a regular and fundamental social networking layer. Google has already integrated Google+ with Gmail, Blogger, Apps, YouTube, and other products to varying degrees.

According to Hanoi Moi