IHttpHandler Interface

I want to provide a service on emlynoregan.com where users can clean an rss-based podcast feed of ads. This will come down to a lot of configuration stuff talking to a database, and some kind of .net code that, given a request for a "feed", goes and finds the source feed, filters it, and returns the result as its own response.

According to my buddy Shane, the IHttpHandler interface is what I need to look at. Thanks Shane!