Along with a klatch of like-minded nerds around St. Louis, I'm working through the classic text Structure and Interpretation of Computer Programming, by Abelson, Sussman, and Sussman.

See here: http://mitpress.mit.edu/sicp/full-text/book/book.html

and here: http://groups.google.com/group/sicp-lounge

I'm doing all this in Clojure, apparently because I want to grouse about all the ways in which it's different from (and, I therefore whine, inferior to) Scheme. Maybe by the time I reach the end of the book I'll think the differences are improvements.

Some of the code here is written by me, and some of it is lifted from the book. Of the former, none of it is code you'd want to put into production. So consider it covered by a protection even stronger than copyright: the Power of Suck.