2004's Science Talent Search Winners Are In
Slate is running an article about this year's Science Talent Search (concentrating on things like whether the participants are "weirdos"); there are better descriptions of the top entrants' projects at this results page. Congratulations to the winners!
Why the MSN article gets choosed for /., with it's lame analysis of subject titles and physical attributes of the contestants, is beyond me.
Once you're a finalist, in order to determine whether you should be in the top 10, they take you through a somewhat intimidating interview process, where you sit speak in front of 3 other scientists at a time (I don't remember anymore, but I think I had 3 or 4 of these types of interviews)... and they don't even ask you about your project. They basically grill you on basic science concepts to see if you know what you are talking about.
BTW, to explain the high New York finalist ratio, this is due to the fact that a lot of New York high schools have 2-3 year programs especially designed to get students to do this competition. They never directly help your with your particular research project, but they do encourage you to go out to local universities and talk to professors in fields that you are interested in. They also help you enter other smaller science competitions in order for you to get more experience. If it hadn't been for one of these programs in my high school, I don't think I would have had the motivation/courage to do this on my own.
Many of the finalists do come from magnet schools like Stuyvesant and Bronx Science, but plenty of NY public schools have this program too. It's basically a way for them to get prestige. I don't know why other states don't do the same, though I guess money is always an issue.