In "Not a Side Effect?", Michael Dinowitz debated with Sean Corfield on whether a specific coding technique is a "side effect" and therefore a bad programming practice. You'll find out what the term "side effect" means in programming, and whether Michael's CFC concept can really be classified as such.
If you don't like the look of those awkward JRun error messages that ColdFusion will sometimes throw, and you want to make your own custom error messages, you should check out Michael's blog entry, "Change the default JRun error message in ColdFusion". Ryan Hartwich has been busy on Blog of Fusion as well, with some excellent MAX coverage (including lots of photos)! Check out his blog entries in the MAX section of the website. (And if you don't want to check out the raw Blog of Fusion posts, you can always just wait until they're written up as full articles on Fusion Authority.)