Devon General Society: http://www.devongeneral.org.uk/
Thames Valley & Great Western Omnibus Trust: http://www.tvagwot.org.uk/index.htm
West Country Historic Omnibus and Transport Trust: http://busmuseum.org.uk/
West of England Transport Collection: http://www.wetc.uk.com/
National Association of Road Transport Museums: http://www.nartm.org.uk/
Devon General Buses in Exile: http://www.devongeneral.info/
Classic Buses website: http://www.classicbuses.co.uk/index.html
Further information on historic vehicles and omnibus preservation groups can be found on the links below.