Continuing to do work with REST in Grails as well as RSS feeds. One issue is testing some of these URL's. In my last post I spoke about a groovy client using Apache's http client package which is quite nice for doing testing with. I also ran across this Firefox extension (RestTest) which is quite handy.
I also found this to a nice tool for testing RSS feeds with since it's not hard to get into a situation these days where your browser will either try and show you the RSS styled up or even redirect you to Google Reader or some other RSS reader. You can put the RSS/ATOM URL into this extensions interface and simply retrieve the XML of your feed for inspection during coding.
On the topic of RSS/ATOM and Grails check out the Feeds Plugin at the Grails site.