A blog run by DroidFreak, AKA Mark Dykstra. A mixture of all sorts of cool stuff, from Rubiks cube solutions to Lego robots.
Robotics Competiton Hint
In case you were wondering how to make your robot grab cubes and lift them to score with only one motor, here's a simple mechanism that is able to to both. It isn't robust enough to wok well in the competition yet, but with a bit of modification it could work quite nicely.