Google can make it Very difficult to Do Great SEO without needing Google+ - 0 views
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david clay on 13 Jan 12Google's just began to include Google brand pages searching results, they're using Google profiles for rel=author tags. They have made Google circles and +1s visible in SERPs. In 2012, I believe this pattern turns into a concerted effort by Google to tie marketing efforts in organic leads to the Google login/verification system.