PHPLink Checker Script

Search engines rank websites based on the amount of incoming links so exchanging links is a good way to increase the number of links to your site. 

If  you have exchanged links with other sites and fear they'll remove your reciprocal links without informing you, then Link Checker is the answer.

Link Checker automates the tedious proces of manually checking your partner sites for links to you. The script is very easy to install, use and customize to suit your needs.