[bromagosa]

In a website for programming challenges, the market status of a language should be the least regarded metric to decide whether to include it or not.

Just check this out: http://projecteuler.net/languages

[buster]

What about the infamous TIOBE Index? http://www.tiobe.com/content/paperinfo/tpci/index.html There should be atleast 3 other languages before ruby then ;)