FREE Web link - When you subscribe to my newsletter

You know how important PR (pageRank) is to your web pages? To obtain quality back links is time consuming and can be an expensive business. So what I do is offer all my customer a Free web link on my website. In return for a FREE web link all I want you to do is make two small purchases a year. You will then become a customer and subscribe to my newsletter don’t worry your inbox will not be bombarded with marketing emails I will only be sending out twelve newsletter a year. And you can unsubscribe at any time so you got nothing to lose and all to gain.      

Who will not is added to my site?
Adult sites, Site with offensive content, Gambling sites.