Stuart Halloway's take on Lau's "Brian's Brain" blog post (here, via @stuarthalloway) -- the original blog posts from Lau can be found here and here, and we wrote about them too in here. Stuart evolves Lau's data structures, adds some goodies and provides some insightful advice on code organization
Cray, a ray tracer in Clojure (here, via @newsycombinator)
An upcoming Clojure course taught by none other than @richhickey and @stuarthalloway (here, via @pragmaticstudio) -- will be in Reston, VA sometime in early 2010