You may have spotted the “Excuse of the Day” at the top of the left sidebar. This isn't a WordPress plugin as such, but a small bit of PHP in one of the theme files. If you want to use the same code, there are a couple of things you need to do.
1) In my case, I am concious of not wanting to abuse Eric's bandwidth, so I have set up a shell script via cron to wget the feed file once per day. I'd recommend this for another reason – if, due to unforseen circumstances, meyerweb is down, your code will still work on your local copy.
2) Edit your theme file in the appropriate place to include this block.