American Bus Association Trade association representing motorcoach and tour companies, travel and tourism organizations, and suppliers of bus products and services in the U.S. and Canada. http://www.buses.org

Autocars De Genval Autocars de Genval can assist your ONE-DAY and INTERNATIONAL TRIPS. http://www.autocarsdegenval.be/

Motor Bus Society Nonprofit educational organization. Collects and publishes information about the history and development of the bus industry. Links include bus manufacturers, distributors, parts, bus conversions, professional and regulatory associations. http://www.motorbussociety.org/

Tbuses for London Campaigning for quiet, clean urban transport Using Overhead Electric, Zero Emission Buses. http://www.tbus.org.uk/