Now this is fun: Matt's thinking about a best of Metafilter slot on the archives page. His idea thread elicits nominations and can point you to some of the best of MeFi.
The self-parody thread is funny, but you have to be kind of experienced over there (it's kind of the new 1142). Plus, believe me, I didn't read the whole thing.
The MeFi community took on 123cheaphosting.com for stealing Matt's design. Some funny stuff.
Anyway, you get the idea.