Google is not stupid - it can spot paid and spam links. For the most effective long-term SEO strategy, move the focus back to great content, both on your website and across other sites. Guest blogging is great, for instance, but to get a leg up on your competition, target blogs that aren’t direct matches to your industry.

For example, a client of my company sells golf carts, so we wrote a blog post about the most tricked-out golf carts for tailgates, and the link we got back was one their competitors didn’t already have.