Pioneer Engineers Club of Indiana
- A group of people who enjoy bringing their antique farm equipment to an annual show to foster appreciation for bygone days on the farm.
- http://www.pioneerengineers.com

The Old Machinery Magazine
- An Australian bi-monthly magazine covering stationary engines, tractors and farm machinery, including rallies and auctions.
- http://www.tomm.com.au/

The J.I.Case Heritage Foundation
- Features photographs and show dates of steam traction engines, threshers and early gas tractors.
- http://www.caseheritage.org/

Chickentown Gas and Steam Association
- Annual steam and gas engine show in Pennsylvania. Demonstrations and antique displays. See operating engines, sawmill, grist mill.
- http://www.chickentown.org

The Deere Farm
- Pictures of various restored antique tractors, engines, implements, and general items.
- http://www.personal.psu.edu/users/b/r/brl115/pictures.htm

Waikato Vintage Tractor and Machinery Club
- A New Zealand club for antique farm equipment.
- http://www.vintagetractors.co.nz/

Agricultural Machinery
- Contains descriptions and drawings of ground breaking, seed depositing, gathering, and miscellaneous farm implements.
- http://www.history.rochester.edu/appleton/a/agmac-m.html