Bluetooth Wireless Technology
Bluetooth is one way to make a cell phone or PDA communicate on wireless networks. Bluetooth technology is fairly slow and short range, but you can do some very useful things with it.
Bluetooth Special Interest Group
This industry consortium created Bluetooth. They maintain the Bluetooth technical specification, monitor Bluetooth product relesaes, and certify Bluetooth devices.
How Bluetooth Phones and Short Range Radio Systems Work
This article explains in simple language how Bluetooth improves on infrared and cable synchronizing alternatives to short-range wireless networking.