Do you use Google Reader as your RSS feed reader? You should because not only is it fantastic online, but a humdinger offline. It took me a while to figure how to access the reader through my browser (Firefox) once offline, but now that I know I wanted to pass it along. I had been trying to get to it by going to reader.google.com; the correct URL is google.com/reader. It makes all the difference. Thanks, Google!

For more info about using Google Reader offline, see this page.