The clojure culture tents to build extremly small librarys that are really composable. Look at this video about simplicity (http://skillsmatter.com/podcast/java-jee/radical-simplicity/...) it translates very nicly to the web librarys.

In a nutshell: Make small simple things even if thats ends up beeing a bit more verbose then if you would have built it as one thing. If time shows that a set of librarys works very nicly together then you can write something new that combines these in a nice way.

This is what the Noir does it just pulls together some librarys and delivers them in a nice package.