Check out the screenshot below.
In Thunderbird you can add as many RSS feeds as you want then they act as if they are email or newsgroup messages, except that it loads the page the feed refers to.
This is the first time I've actually used RSS like this (I do use it on nthellworld.co.uk to pull in the CF news articles though).
I can't get enough of it now.
Now to go hunting for more feeds...