A piece of software from Carnglas called iFeedPod transforms your iPod into an RSS aggregator. As long as your iPod has the Notes function (and most of the later-generation ones do), you can use that functionality to import RSS feeds right into your favorite MP3 player for viewing.
In a twist on the usual order of things, this is Mac-only software. The latest version works with Intel Macs as well as on PowerPC versions.
With the explosive growth of RSS these days, the possibilities for transforming your iPod into a news feed reader are limitless.