From the Blog
What is a Slug?
A clean URL is also called a slug. When you have a clean URL with a slug you have the keyword you focus on in your article at the end of the URL. For example: www.theaffiliatemarketinglab.com/1692/what-is-a-slug is a clean URL, while you can hardly remember a URL like www.theaffiliatemarketinglab.com/p=1692?