The DigiOz Link Checker is a VB.NET application that is Microsoft Access Database Driven. The application stores a list of websites that a user wants to keep track of, along with their current content signature. The user would then run the application to check and see which site on the list has been updated or changed since the lasts check. A list of changed sites will then be exported to a file in HTML format, and displayed on the screen in your default web browser.
Download | Source