For the past few years I have been particpating in our local (Central Oregon) First Lego League (FLL) Robotics Competition as a technical judge. The yearly event allows teams of 3-9 kids from the ages 8-13 to participate in challenges which involve building a robot from legos and programing it to perform tasks for points. There is more involved than simply that, for example they also are judged on a research project relating to the event. For more detailed information you can check the Oregon Robotics Tournament and Outreach Program (ORTOP) site.
Over the past year I’ve heard rumblings about the demise of the Lego robotics division, however this new NXT Robotics Toolset which was unveiled at the 2006 Consumer Elctronics show gives hope! Man, this thing looks cool! I think I want one!