BlueZ
Computers, Data Communications, Wireless, Bluetooth - BlueZ. Open Source Bluetooth protocol stack for Linux.
https://bluez.sourceforge.net/
Code Blue Communications
Computers, Data Communications, Wireless, Bluetooth - Code Blue Communications. Provides consulting.
https://www.codebluecommunications.com/
Brain Boxes
Computers, Data Communications, Wireless, Bluetooth - Brain Boxes. Offers Bluetooth PCI/PCMCIA cards, chips, ASICS and reference designs.
https://www.brainboxes.com/
Bluetooth.org - Welcome to Bluetooth.org
Computers, Data Communications, Wireless, Bluetooth - The Official Bluetooth Membership Site. Provides discussion groups, marketing and technological resources for developers.
https://www.bluetooth.org/
Bluetooth.com
Computers, Data Communications, Wireless, Bluetooth - Bluetooth. The official website for the Bluetooth short range wireless connectivity standard.
https://www.bluetooth.com/