Two Google+ SEO guides byand you should definitely check out.
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- If your audience isn't active, there is still a significant chance that your G+ profile and activity will effect the organic SERPs and have rich snippet data giving very good CTR too!Feb 15, 2012
- My Google+ 4 Business book should be added to the list of "must read' for Google+ marketing!
https://www.createspace.com/3782798Feb 15, 2012
- Agree with. No matter what, search results will be affected by Google+ presence or lack of presence. Your business has to be on G+!Feb 15, 2012