جمعية الترولي باص الوطنية (المملكة المتحدة)، نصف شهرية* "Trackless"، مؤسسة ترولي باص برادفورد، ربع سنوية* "Trolleybus"، جمعية الترولي باص البريطانية (المملكة المتحدة)، شهرية* TrolleyMotion - an international action group to promote modern trolleybus systems (+ database of systems in the world)* British Trolleybuses* Trolleybuses in Latin America* North American trolleybus pictures* All-time list of North American trolleybus systems, accessed 30 January 2004* (Bibliography of the electric trolleybus (Richard DeArmond* The Electric Trolleybus Web Site* Trolleybuses in Europe* Trolleybus cities of Russia
National Trolleybus Association (UK), bi-monthly* "Trackless", Bradford Trolleybus Association, quarterly* "Trolleybus", British Trolleybus Society (UK), monthly==External links==*TrolleyMotion - an international action group to promote modern trolleybus systems (+ database of systems in the world)*British Trolleybuses*Trolleybuses in Latin America*North American trolleybus pictures*All-time list of North American trolleybus systems, accessed 30 January 2004*Bibliography of the electric trolleybus (Richard DeArmond)*The Electric Trolleybus Web Site*Trolleybuses in Europe* Trolleybus cities of Russia