Not to brag about my scores (in the middle of the page, under the fold), hope you can beat me!
Just found a very full-fledged programming skills test program online and thought it would be nice to share with you guys. It's from one of the largest freelance broker Elance. You need to register to take the tests. Well, check out my elance profile for my testing scores and how good I am from the crowd.
You are going to work out 40 multiple-options questions in less than 40 minutes. The system will get you a score between 0 and 100 and calculates your rough position from the crowd. There are in total nearly 150 different computer / internet design / development skill tests available. It used to be a paid service and on Feb 5th Elance decided to release it free to public and now everybody can take the tests.
Go take a few tests and share with us your scores! I made top 1% in XHTML, SEO and PHP5!