The official website for the Bluetooth short range wireless connectivity standard. Includes news, events, and product support.
http://www.bluetooth.com/

Bluetooth is an open wireless technology standard for exchanging data over short distances (using short wavelength radio transmissions) from fixed and mobile devices, creating ...
http://en.wikipedia.org/wiki/Bluetooth

The definitive source of information around Bluetooth SIG programs, initiatives, and Bluetooth wireless technology development.
http://www.bluetooth.org/

Bluetooth A wireless personal area network (WPAN) for short-range transmission of digital voice and data
http://www.answers.com/topic/bluetooth

Bluetooth technology allows electronic devices to communicate wirelessly. Learn about Bluetooth, Bluetooth headsets and how to link devices.
http://www.howstuffworks.com/bluetooth.htm