What is Bluetooth?
Bluetooth - is a technology specification for small form factor, low-cost, short range radio links between mobile PCs, mobile phones, and other portable devices. It is expected to enable users to connect a wide range of computing and telecommunications devices without the need to connect cables. For more information visit www.bluetooth.com

Bluetooth Sniffing Video

Can you use bluetooth like wifi, to find networks and stuff?
Yes you can! It's widely been given the name of WarNibbling.

What is BlueDriving?
BlueDriving - Is like wardriving: finding wireless bluetooth networks, but with Bluetooth instead of Wifi.