What's the collective noun for a group of LEDs? How about a 'Cube'...

Digging out video material on Light-Emitting Diodes certainly leads to the excavation of cube-shaped content (as well as the occasional snake...)

First off, let's enter the two dimensional matrix before we fully get to the cubes themselves. This 8x8 LED Matrix is connected directly to a PIC microcontroller with no limiting resistors, and the demo shows a complex fading process where the center and outside fade-in and fade-out opposite of each other.

Now, lets meet a an LED cube snake. And see it snakin' around the cube, to good ol' country music accompaniment.

From single line snakes, how about waves? Check out this "8x8x8" Led cube, driven by a PIC with blue diffuse leds in a black tinted acrylic case.

Finally, the pièce de résistance of LED cubes, for which we should name check Seekway and its 16*16*16 3-D lattice. It is a little gem flagged by gizmodo.com:

"Seekway has put together this spectacular 3D LED display, which is capable of displaying images in full 3D at an amazing, 30 fps. The prototype consists of a 16 x 16 x 16 grid of interconnected colour LEDs and if our mathematics doesn't fail us, that's 4096 individual diodes. We're sure you'll agree; it looks amazing, but the video is even more fantastic, so jump in."