I’ve been playing around with Yahoo Pipes and I like it. Still not sure where to type the “|” symbol and I expect we will all get beyond that pretty quickly.
Once you get past the somewhat confusing configuration boxes and understand the tool does a very good job of parsing urls whether feeds, news or others, it is quite simple to collect a group of sources, sort, order, eliminate duplicates and publish them. Publishing comes complete with a standard set of feeds and your own your way. My next step will be to check out some of the more interesting mash-up concepts.