Anyone that wants to syndicate RSS and Atom feeds on their web sites would be well-served to take a look at FeedSweep, a new free service provided by Howell Developments. The only JavaScript-based system I’m aware of that provides support for parsing Atom Feeds, and in addition, the only one I know of that will let you fully customize CSS style. Also comes with an easy configuration for novice web masters. Aggregates multiple feeds, actually caches (most of the JavaScript-based services don’t, to my knowledge) and comes with a bunch of pre-made styles! Oh, and I wrote it, but I don’t feel shameless for mentioning it because it is IN FACT, free.