Most SEO agencies and consultants are scammers. Here are six of the most common SEO scams, and how to identify them: 1) Actually doing nothing 2) Guaranteed results 3) Listing clients, and lying about who clients are 4) Fake case studies 5) Saying linkbuilding is worthless 6) Claiming to be Google certified in SEOThis is just the beginning of our discussion of SEO scams.