Detecting lies, Ruby online and other links

Detecting lies:
An article at http://www.blifaloo.com/ discusses a very interesting way to detect lies using body movement. Basically it tells about different things that you think based on the direction of your eyes. Not 100% correct though.

Eye Direction and Lying | How to Detect Lies

Try ruby online:

http://tryruby.hobix.com/
A guide to ruby 

Misc:
Full time freelancing: 10 things learned in 180 days