10 Programming Languages Worth Exploring

Now that I’ve completed the final class toward my Masters Degree I have the time to explore some things of my own choosing.  One thing I intend to do is to learn a new programming language.  This article I discovered via Reddit is a good place to start.  It lists 10 languages worth learning.  These are the up-and-coming languages, not the current hot topics like Python or Ruby.  Interesting items on the list include Squeak, Haskell, Clojure, and PLT Scheme.