A few people have added comments to the post below, asking for a clearer set of instructions on how it’s done.
Thankfully, my colleague Cyprien Lomas has just built one…
And of course, as David Carter-Tod notes, this application is hardly limited to WebCT. It can be applied in almost any context that publishes to the web. I have an RSS feed of this weblog running on the LOs @ UBC page (which will be getting a redesign soon, honest).