(Students I need your help here)
The following website doesn't really deal with mechanics of materials much, but it is quite interesting:
http://www.powerlabs.org/emguns.htm
This website is run by Sam Barros, a double ME EE major at Michigan Technical University, and pretty much every cool electrical device I can think of or heard of, he's built. Lasers, Gauss and Rail Guns, Tesla Coils, Plasma Globes, he has almost all of his projects documented with photos and video.