Be careful putting too much stock into IQ tests, online or even professionally administered. There are so many different kinds of intelligence, and IQ tests pretty much only look at verbal and analytical or mathematical types of intelligence. There's also emotional intelligence, and spatial, musical, social, ... You might want to search or read books on emotional intelligence and multiple inteligence. The main authors to look for are Daniel Goleman and Howard Gardner. There is just so much more to it, and it's a shame when kids are limited or pigeon-holed by the results of a test. And I'm a quiz addict myself. Here are some websites to look at:
Use All Your Smarts
Integrating Multiple Intelligences and Emotional Intelligence
Emotional I.Q. and Multiple Inteligences Links

You can find E.Q. tests on the internet too - they are interesting, and, well, I'm a quiz junkie so I play with them. Probably not a good inicator of anything either, but it's another perspective anyway. Queendom.com has lots of tests about just about anything, and I feel that I've learned quite a bit from taking them, whether or not they have a great deal of validity (some may, and others definitly are just for fun).