sfeed_html(1) doesn't quite do what I want. It does create a "river of news" when I give it several different feeds combined and sorted, but it omits the content of each feed item and doesn't identify which feed it came from.

But it looks like I can munge together what I want with a bit of awk, first to add a feedname field to the sfeed output, and then (after combining, sorting, and trimming the different feed files) to pour the data into an html template. I should be done with the finishing touches tomorrow. It's yet another example of the power of Unix text processing, a simple pipeline of transforms that practically wrote themselves. Gotta love it!