I was about to post an entry about tagboard scripts after seeing one used on Doll-O-Matic, but Ev beat me to it with another one. Before today, I was considering setting up a plain old guestbook in an iframe. Now I’m wondering if I really need a tagboard while I already have comments and a guestbook. Plus plans for a forum. And maybe a chatbox from Tim.
Anyway, two words: Hippocampus Extensions.