Somewhat tangential, but I wish there were more comprehensive learning resources for Clojure, particularly getting started with web development. Given that there is no equivalent of Django or Rails, and web development in clj is really about assembling a collection of libraries (Ring, Compojure/Moustache, Enlive/Hiccup etc), it is much harder for the initiate to understand how everything fits together. The fact that…
Clojure to me seems like a language culture that would likely tend towards smaller libraries that do specific things than something with batteries included and such like Rails.
If you want something on the JVM with more of a batteries included approach Play Framework for Java and Scala is pretty nice and Lift for Scala is cool if you're willing to take a very different approach to your web stack.