Regular reader Pat sent me a newsletter that linked to a Mashable posting on RSS (news feeds) resources:
Never again will mankind have to look for RSS info in more than one place…ok, we’re kidding, but we’ve aimed to create a near comprehensive list of all the RSS readers, tools, browser plugins, tips, hacks and directories available on the web. We hope you find it useful (we built it because we needed it), and feel free to add your own suggestions in the comments.
It is quite a complete list. If you are interested in any area of RSS (creating, reading, organizing, etc), then you should definitely check this out.