NPBME

If you want lists, for back-end languages (in order of my ability to recall): Java (and other JVM languages like Scala, Groovy, Clojure) Nodejs(javascript On Server My Hot Fav) New World Of Backend PHP .NET (C#, VB) Ruby Python Perl Actionscript (Flash Media Server) CoffeeScript C (CGI) Erlang oh, and SQL for db queries For browser-based front-end languages, you're somewhat limited in what the browser can support (excluding launching out-of-browser applications). We could talk about: HTML Javascript(angularjs,jquery,ajax) CSS Actionscript CoffeeScript (compiled to Javascript) XML-based languages (X3D, SMIL, SVG, DITA, some interpreted by the browser, others transformed using XSL) VBScript Silverlight Java (applets) For native PC desktop front-ends, most popular front-end languages would probably be (I'm guessing, in no order): Visual Basic 6 (from my experience with big enterprises, I bet a lot of those are still out there, just like Windows Vista) .NET Java (Swing...