As a webmaster, protecting yourself from link cheating is very time consuming and disheartening. Of course, you can check every site you relating to and verify that your link has been added to this site. This is extremely important time consuming, even by using a "link checker" tool, and you can not find your link even if it is there! Or, if make sure you find below you can follow lets start work on a polite email. And, if you don't get a response within a week or two, you can remove their link through the website. Unfortunately, by then you've got been promoting the other site(s) as a month additional and getting zero back. Link cheating.