e-Tracks: World Motor Racing Circuits
- Directory of motor racing circuits from around the world. Includes A-Z listings of every Formula 1, CART, IRL, NASCAR, MotoGP, World Superbike and ALMS track. Facts and figures on all major circuits and history.
- http://www.etracksonline.co.uk/

Tracks In The World
- Information and maps of circuits from around the World. Also, old circuits, proposals not developed or rare tracks.
- http://sport.supereva.it/gdecarli/index_circuiti.htm?p

Race Track. com
- Listing of racetracks from all over the world. Also has race track forums.
- http://www.race-track.com/