Rap Genius, a site hosting song lyrics, is getting a lesson in playing by Google's rules. It concerns search engine optimization spam practices. The site's business relies on search engine rankings. The site used a few SEO tricks Google did not approve. While there's nothing wrong in asking for links, per Forbes, they offered a quid pro quo for those links--tweets directing people to the blog that made the links. Bad practices pushed the site to at least page five.