1. Car-to-car communications http://www.car-to-car.org
2. SEVECOM: Secure vehicle communication http://www.sevecom.org/
3. NOW: Network on wheels http://www.network-on-wheels.de
4. U.S. department of transportation: intelligent transportation systems http://www.its.dot.gov
5. Ahsra: advance cruise-assist highway system research association http://www.ahsra.or.jp