| 407 ETR: Information about the world's first all-electronic open access toll highway, which extends 108 kilometres east-west, just north of Toronto. Explains the road's special features, tolls, and transponder use. |
| Friends of Red Hill Valley - Expressway: Opponents of this facility in Hamilton. Page includes facts and references. |
| Highways: Includes descriptions, history, and photographs. |
| Historical Highways Society of Ontario: Organization for the preservation of the Provincial Highway system and an information source for its former portions. |
| How to contact Ontario's Hwy 407 ETR: A detailed list of contact information about most of the companies involved with the facility located near Toronto. Also contains many related links. |
| Ontario Freeways: A listing of most facilities in the province whose entries include photographs and other information. |
| Ontario Ministry of Transportation: Profiles agency responsible for transportation and roads. Includes information about operations, publications, legislation, and links to related sites. |
| Ontario Provincial Highways Home Page: A historical guide to Ontario's highway system. |
| Ontario Secondary Highways: Gives descriptions with photographs of the routes in the system. |
| OntHighways.com: Includes text descriptions of former and current routes, with pictures. |
| Road Info: Covers Toronto. |
| The History of Ontario's King's Highways: Offers historical and current information, including images of old signs as well as old photographs. |
| The King's Highway Ends: Photos and information about all of the ending points of Ontario's King's Highways. |
| The Road Scholar: Historical information and anecdotes. |