Links:

* Homepage of the original RUR-PLE: http://code.google.com/p/rur-ple
* Old Sourceforge page of RUR-PLE with tutorial:
  http://rur-ple.sourceforge.net
* Research Project using RUR-PLE: http://code.google.com/p/play-to-program
* RUR-PLE video tutorials:
  http://showmedo.com/videotutorials/series?name=RUR-PLE
* http://en.wikipedia.org/wiki/RUR-PLE
* Cory Doctorow, Little Brother, containing a quote that everybody should
  learn to program, e.g. Python http://craphound.com/littlebrother
