Thanks to John Kaster and Roy Nelson for providing some impromptu QA on my RSS feed hack. Apparently I was missing a " " (space) between the "1.0" and ?> in the <?xml version="1.0" ?> header. Should be fixed now. I don't see why this space should be significant, but there are some new aggregators and XML validators that complain. I know that NewsGator seems to be OK without the space. It's on points like this that I find the W3C specs to be lacking in clarity.