7 stacksqueues
Hadoop + Clojure
Three languages in thirty minutes
Java Crash Course A Tutorial Introduction for C++ Programmers.
Andy On Closures
Java platform
Java Bytecode for Discriminating Developers - JavaZone 2011
Introduction to Grails (Groovy vs Java and Grails vs Rails are included)
Exceptions & Its Handling
A Dive Into Clojure
Paulking groovy
Groovy Power Features
