First of all want to thank all of You who posted comments here. Special thanks to James Edward Gray II for pointing at the misstakes, incompleteness and obscure language! When I have posted at Ruby group I have expected far more "blunt" relpies, believe me ;) Now allow me to try to 'defend' myself a bit :) What we are talking here about is a bit different, than traditional certification. The main purpose is learning. You pass the exam and see that You don't know some answers. After the exam it is possible to see the explanation and to learn (multiple-line comments is realy a good example :) ) As I have mentioned before, everyone will be allowed to add new questions and the best of them will be chosen by approval process. No single no-expert person (like me) is going to create a set of questions and call it a certification. I will be posting mine and humbly waiting for other Ruby specialists to rate or comment it. And of course public mailing list and practice ARE better ways to learn :) And tell me one more thing - why some of You afraid of Ruby becoming popular? Dmitry