Putting Older Hardware To Good Use?

^Phantom asks: "I am a telecommunications major at college. Due to the lack of lab time at school I am always trying to practice as much at home as possible, the problem is I don't have the money for the latest/greatest things, usually I end up with scraps that 'helpful' friends and co-workers come up with. A common example is the Motorola Powerstacks I have on my floor now. I would like to put these to use, and I have heard linux can be made to run on them, but I have been unable to find info except message threads stating the problems that others have faced but with no solutions. I did find one HOWTO but when I followed the steps listed I ended up with a box that kernel panics on boot and no idea why. Is there any websites dedicated to putting old/odd hardware such as this to use?" You'd be amazed how many people out there are finding yesterday's powerful machines in a surplus sale and would love to figure out where to find hardware for it, or figuring out what OSes it will run. Are there any resources on the interenet that might help one with obtaining this information?