Current Metrolinx Corridors:
- The Lakeshore West Corridor (Union Station to Oakville/Aldershot/Hamilton) — May 23, 1967
- The Lakeshore East Corridor (Union Station to Pickering/Oshawa/Bowmanville) — May 23, 1967
- The Kitchener Corridor (formerly Georgetown) (Union Station to Kitchener) — April 29th, 1974
- The Richmond Hill Corridor (Union Station to Richmond Hill) — May 1, 1978
- The Milton Corridor (Union Station to Milton) — October 25th, 1981
- The Barrie Corridor (Union Station to Bradford/Barrie) — September 7th, 1982
- The Stouffville Corridor (Union Station to Stouffville/Uxbridge) — September 7th, 1982
- The Union Pearson Express (Union Station to Pearson Airport) — June 6, 2015
- The 407 Bus Corridor (Points West to Highway 407 Station to Points East) — September 5, 2000
- 50 Years of GO Transit Bus Operations, by Adam Zhelka
Metrolinx Corridors to come?
- The Midtown Corridor (Kipling/Erindale to Markham Road?)
- The Woodbridge/Bolton Corridor (Union Station to Bolton?)
- The Streetsville/Orangeville Corridor (Union Station to Orangeville?)
- The Agincourt/Peterborough Corridor (Union Station to Havelock?)
Other GO Transit History
- The GO-ALRT Project (by Peter Drost)
- Current and Future GO/Subway Connections
- GO Transit’s Dial-a-Bus Experiment (1973-1976)
- Remarks by Gary McNeil, Managing Director, GO Transit
Histories About Other Local Transit Agencies in Southern Ontario
- Toronto Regional Transit Photo Gallery
- Brampton Transit:
- A Brief History of Brampton’s Zum Network (Coming Soon)
- VIDEO: Brampton Transit’s Sandalwood Garage, Doors Open Ontario 2019, by Damian Baranowski.
- Durham Region Transit:
- A Brief History of the Oshawa Railway.
- A History of Durham College/UOIT Bus Loop.
- A Brief History of the DRT Pulse BRT (Coming Soon)
- Halton Region:
- Hamilton Street Railway:
- MiWay Transit:
- Niagara Region:
- Waterloo Region:
- York Region Transit:
- Other