Presentation:Perception and Action: An Introduction to Clojure's Time Model (here, via @arm1433) -- This talk by Stuart Halloway explains how clojure tries to solve the problem of modeling a world in which things change over time without getting hurt in the attempt. This talk was recorded at QCon SF 2010. His talk is much more approachable than this.
TryClojure update (here, via @planetclojure) -- Part of the update seems to be that the system is up more often than not ;) This article outlines some of the new features, including a new hosting provider and some cool UI improvements. Also, please report bugs when you find them!
Graphing Metrics (here, via @planetclojure) -- A small app in clojure that plots metrics from your servers.
(Joy of) Clojure Bookshelf (here, via @hnfirehose) -- This is the bookshelf that the author's of Joy of Clojure propose as an extension to Rich Hickey's bookshelf.