Tom's Engine Barn
- Engine parts for sale-- Spark Plugs, original pattern wire, maytag gasket sets, round and flat leather belting and used engine parts.
- http://www.enginebarn.com/html/online.html

Big State Grinding & Casting Repair, Inc.
- Provides precision engine machining and repairs of antique engines, castings, water cooled exhaust manifolds for Fairbanks-Morse, Continental, Arrow, Waukesha, Ajax, Caterpillar and Superior engines.
- http://www.bigstategrinding.com/

Bob's Small Engine Repair
- A large selection of new and used air-cooled engine parts (particularly Maytag) dating from 1918, literature, decals and service information. Located in Marion, Iowa.
- http://www.bser.com/

Engine Books
- Gas and steam engine books and magazines including: Diesel engines, old outboard motors, antique steam tractors and marine engines. Separate section on toy and model railroading.
- http://enginebooks.com/

EnginAds
- A classified ad listing for selling and buying parts, service and materials related to antique gas and stationary steam engine collecting.
- http://www.enginads.com/