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Google+ Guides for Business
Here is a list of some popular Google+ tutorials for businesses:

Step-by-Step Guide to Creating Your Google+ Page

How to Optimize Your Google+ Business Page

12 Simple Ways to Promote Your Page (And Get Circled Today)

How to Get Your Page Uncircled: 12 Killer Ways to Lose Subscribers

21 Creative Photo Strips on Google+ Pages

The Muppets Guide to Getting More Shares, Comments and +1s
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