I'm looking for some php script, web service or PC software to monitor incoming links to all my sites. My goal is to have a solution where I can keep track of link exchanges, as well as automatically check that the incoming links are still existing and valid. Basically, I need to have a comment field for each link and some bot checking the links. I've found an interesting script, which never seems to get updated though -> http://codecanyon.net/item/backlinks-monitoring/95807 and a web service at http://www.LinksRepository.com I'd like to get suggestions about other solutions and answers to the topic: How do you monitor your incoming links?