Robbo sez, "Sapientia University has posted a series of videos using folk dances as a way to visualy demonstrate various sorting algorithms. It's intensely geeky – and just downright cute too."
I love sorting algorithms — I actually use bubble-sorts in real life all the time when I'm trying to make subtle qualitative distinctions (picking the best three flowers out of a bunch, say).
Take one Central European folk dancing team, a small folk band and an added overlay showing array locations and get them to dance the algorithms in time to "appropriate" folk music. The result is slightly surreal and for a time at least slightly hypnotic.