Nate - I just added a clojure group - probably it is overboard but it focuses the conversation around a language if there are questions. I dabble in elisp, scheme, clojure and erlang all day long myself. Elisp and Clojure are my work languages and scheme and erlang are my play ones. (although i have been sneaking erlang into work).

http://www.willamette.edu/~fruehr/haskell/evolution.html
I think the unary (list encoding) one is particularly hilarious. I like the hylomorphism one as well. Got a little lost on the post doc version. I have no idea what a zygomorphism is...