As I am a huge fan of Scala, I presented some features of this great language to my colleagues at Optilab.
The source code and materials to repeat or have your own talk are available at: https://github.com/szitnik/scala-tutorial. Screencast is accessible at: http://zitnik.si/temp/scala_techTalk_25_11_2013_screencast.mov.
Video (if you do not see it, go to http://optilab.viidea.net/zitnik_programming_in_scala/):