I’ve been working on not only migrating my news to be CSS compliant, but migrating all of the links found on this site to my new link manager. What I’ve recently found is that CNN.com doesn’t keep the news posted there live forever. My migration spider has found quite a few dead stories thus far. This makes the caching mechanism of of my link manager even more of an asset to the people who may browse this site in the future. The good news though is that PHP’s fopen function evidently reads headers, because it treats 404’s as invalid documents.