This document discusses using Google+ for marketing purposes. It describes Google+ as a social network for sharing content and conversations that provides SEO benefits such as quickly indexing public posts. The document outlines several Google+ features that can help with SEO, including authorship presence, leveraging hovercards, and gaining page rank and do-follow links from +1's and posts. It also provides tips for an effective Google+ strategy such as engaging with influencers, using circles, and considering communities or hashtags.