XeNTaX

I was searching for computer components, and found something about using a usb flash drive as extra ram (virtual)? One just laying around nonetheless? Anyone tried this before? If so, what were the results?

This explains it pretty well:
http://en.wikipedia.org/wiki/ReadyBoost

Never tried it myself, if you want the performance (and have the money) I would use a SSD.

If you would like better performance without using an external flashdrive:
http://en.wikipedia.org/wiki/Hybrid_drive

Interesting information.