Firefox based link checker
Today, I published my Greasemonkey user script: Link Checker.
If you have Firefox 1.5, with Greasemonkey installed, you can quickly scan your web pages for broken links.
There is one catch: you need to manually enable the script for the pages you like to scan. The most easy way to do this, is from the Greasemonkey menu (click on the little monkey fase in the right lower corner of your Firefox window’s status bar).
Just add the url(s) you want to enable in the box labeled with Include Pages. A * serves as wildcard, so any page on a Google subdomain is added like this: