Google+, also sometimes written as Google Plus, is Google‘s social network. It as launched in 2011 and, as of 2017, has 111 million active users.
Google+ is an important social media marketing channel, allowing you to reach a wide audience.
For SEO purposes, Google+ is very important. Optimizing your profile will help get your website in SERPs for highly competitive keywords. Adding location information acts as a powerful NAP citation.