Reciprocal links are a good way to boost your Page Rank. If you would like to develop a reciprocal link program on your website, the reciprocal link checker that I've written should be able to help you out. This code allows you to verify whether or not a URL has a link to your site.

You can download the source code here. The code is written in ASP and is totally free, so you may do with it what you will. If you use the code on a public page, I'd really appreciate a link back to my homepage.