Seeing the link to the Hiawatha web server, I was kind of hoping the episode would talk a little about it...

(It's nice in general to hear about not-Apache webservers for a change. We've long since moved on past the idea that email necessarily means "Sendmail", but the internet in general seems to have trouble moving beyond "www means Apache").

Cherokee is a good alternative as well, though they've been way too slack about making real releases out of their updates over the last year or so.

Still a good episode, and although I've never used thttpd myself, I agree with the general sentiment expressed wholeheartedly!