The Bluetooth Special Interest Group (SIG)
Microsoft - Bluetooth Wireless Technology
Philips Semiconductors - Bluetooth
Palo Pacific Technology - Bluetooth Resource Center
The Bluetooth Site By Engineers - For Engineers
Whitepaper: Bluetooth voice and data performance in 802.11 DS WLAN environment
Whitepaper: Reliability of IEEE 802.11 Hi Rate DSSS WLANs in a High Density Bluetooth Environment