It can be hard for non-SEO people to tell the difference between Real SEO and spam. Let's give some examples of spam tactics that some so-called SEO companies proudly advertise as a good way to promote your business.
Here's one to start - please add yours!
Your SEO might be a spammer if...
"...uses a network of dozens and dozens of highly ranked websites to blast your media across the internet, with a link to your website"