Things change quickly in the world of software development. I started my career writing in Fortran 77. I stayed fairly abreast of languages until C++ and Java. I wandered by the Pragmatic Bookshelf to see what’s new. Languages/Frameworks I’ve barely heard of include: Erlang, ANTLR, Stripes, Cocoa, Scala, Groovy and Clojure. I see that Learn to Program uses Ruby. Maybe I should start there. And in the beginning “The learning of a thousand languages begins with a single keystroke.” (with apologies to the original author)