The Heritage Photography Project
- Abandoned houses in Ontario. Over 150 pictures from Genesis Creative Services.
- http://www.genesiscreative.net/heritage.html

Google Groups: UrbEx Ontario
- Members require approval to join. A loose affiliation of acquaintances who love to capture images of delicious structural decay. By researching and photographing Ontario abandonments, we all become more finely attuned to our recent past and rich history.
- http://groups.google.com/group/UrbExOntario

Urban Tresspasser
- Exploring locations in Ontario. Photo blog with some history of the sites.
- http://urbantresspasser.blogspot.com/

Ontario Rural Ruins
- Photoblog for rural exploration and/ or ruins, derelict places in Ontario, Canada.
- http://ontarioruralruins.blogspot.com/

Flickr: Abandoned Niagara
- Abandoned and decaying buildings, barns, and homes in the Niagara region of Ontario.
- http://www.flickr.com/groups/abandonedniagara/

Flickr: Ontario Rural Ruins
- Derelict, abandoned, ruined buildings, places or things in rural Ontario. Old farm houses, abandoned commercial buildings, ghost signs, old signposts, whatever you stumble upon as you travel around Ontario.
- http://www.flickr.com/groups/ontarioruralruins/

Flickr: Thunder Bay In Decay
- Decaying industrial and commercial buildings and miscellaneous debris in the area of Thunder Bay, Ontario.
- http://www.flickr.com/groups/302926@N25/

Concrete To Cottages
- Toronto and northern Ontario photoblog. Many unique photos of abandoned and derelict places/ sites.
- http://concretetocottages.typepad.com/

Flickr: Creepy Ontario
- This is a group dedicated to those who love to shoot pictures of the surreal, creepy and just plain unsettling.
- http://www.flickr.com/groups/373531@N21/

Flickr: Wasteland Warriors
- Urban exploration, no armchair explorers here.
- http://www.flickr.com/groups/63829100@N00/

The View From Up Here
- Photoblog from around Ontario. Includes abandoned buildings, farmhouses and urban architecture.
- http://krlphotography.typepad.com/

Dave Till: Toronto Ghost Signs
- Flickr photo set with photos of old painted signs around Toronto.
- http://www.flickr.com/photos/davetill/sets/72157594474186564/

Spacing
- Understanding Toronto's urban landscape and public spaces.
- http://spacing.ca/

Toronto Psychogeography Society
- A loose collection of relentless flâneurs, explorers and walkers. Participants step out of their daily routine and explore the city's overlooked corners to imagine the dynamics of a better future urban environment.
- http://www.psychogeography.ca/

Jennifer Burns: Local Ruins
- Abandoned and reclaimed buildings in Toronto.
- http://www.jenniferburns.net/

Flickr: The Toronto Urban Exploration & Adventure Meetup
- This is a collection of images from outings with the Toronto Urban Exploration & Adventure Meetup group.
- http://www.flickr.com/groups/torontoexplorers/

Flickr: Urban Toronto
- For those who are interested in exploring and documenting the urban landscape in Toronto.
- http://www.flickr.com/groups/urban_toronto/

Flickr: Toronto Architecture
- All images must be of buildings, building interiors, building details or other architectural structures. Images of buildings going up or coming down are also welcome.
- http://www.flickr.com/groups/toronto_architecture/

Meetup: Toronto Urban Exploration & Adventure
- Meet other locals who are interested in urban exploration, urban spelunking, or the exploring of secret urban nooks and crannies.
- http://urbanexplor.meetup.com/12/

Flickr: Air33
- A self-taught photographer living in Toronto. Architectual and industrial photography. Especially interested in exploring abandoned buildings.
- http://www.flickr.com/people/air33/

Locus Incompertus
- A collection of photographs of a Toronto-based explorer who looks for these unknown places to document them for others to see.
- http://www.locusincompertus.com/

Kendall Anderson
- Abandonments, decay, industrial mayhem based in Ontario.
- http://invisiblethreads.com/potd/

The PhotoMat
- Individual collection of photographs taken of urban decay in Toronto.
- http://www.flickr.com/people/thephotomat/

Abandoned Farm Houses of Ontario
- Photographic prints of abandonded farmhouses in Ontario. Taken by Allan Lewis.
- http://www.britishcarlinks.com/abandoned_farm_houses_of_ontario.htm

Angels of the Underground
- Flash-only site of a group of Toronto explorers.
- http://underground.daft.ca

Toronto Urban Exploration
- MySpace group for discussing urban exploration in Toronto and area.
- http://groups.myspace.com/tuemyspacecom

The Vanishing Point
- Chronicling and photographing storm drainage and abandonments in Ontario and further afield.
- http://www.vanishingpoint.ca

Flickr: Toronto Urban Exploration Photography
- A group for Toronto urban exploration photography.
- http://www.flickr.com/groups/tueamg/

Sean M.L. Galbraith
- Photographer and professional urban planner in Toronto, Ontario. Observing and documenting urban life.
- http://www.smlg.ca/

Flickr: Toronto Urban Decay
- Sharing pictures of neglected and abandoned beauty in Toronto.
- http://www.flickr.com/groups/88361455@N00/

Dark Playgrounds
- Exploring in Ontario.
- http://www.alcsnet.com/dark-playgrounds/

Urban Exploration Kitchener Waterloo
- Crossfire's site from Kitchener-Waterloo, Ontario.
- http://crossfire.minimanga.com/

The Toronto Urban Exploration & Adventure Meetup
- Toronto, Ontario area group which schedules meetings to explore.
- http://www.tueam.com/

Edward Burtynsky
- Photographer explores the intricate link between industry and nature. Based in Ontario.
- http://www.edwardburtynsky.com/

Worksongs
- A photoblog showcasing abandoned places in and around the Toronto area.
- http://www.worksongs.com/

Viewing Hole Gallery
- Pictures and commentary on several expeditions, mostly in the Toronto area.
- http://www.kittyempire.com/viewy/

UrbEx Barrie : CopySix
- Acquaintances who love to capture images of delicious structural decay in Ontario.
- http://urbexbarrie.blogspot.com/

University of Waterloo Service Tunnels
- A brief photo tour of the tunnels under the University of Waterloo.
- http://matt.wandel.ca/tunnels/tunnels.html

Underground Belleville
- Mission reports from a disbanded group of explorers based in Belleville, Ontario.
- http://ueb.minimanga.com/

UEL: Urban Exploration London
- Exploration of abandoned buildings and drains in and around the city of London, Ontario and surrounding areas.
- http://uel.minimanga.com

Ontario Abandoned Places
- Features mines, railways, urban exploration locations such as factories and hospitals located in Ontario.
- http://www.ontarioabandonedplaces.com/

Nanoman's Piccah Page
- Information relating to Whitby Psychiatic Hospital.
- http://www.nanoman.ca/piccahs/

Live Journal: Toronto Explorers
- Post stories, pictures, locations and arrange meet ups with other explorers in the Toronto, Ontario area.
- http://community.livejournal.com/torontoexplorer/

Function
- Urban explorations of Toronto, Ontario.
- http://www.function.org/i/images/explore/index.html

FreeBase Ideal
- Urban exploration in London, Ontario.
- http://publish.uwo.ca/~mvens/

Flickr: Whitby Psych
- Photos and art depicting the infamous abandoned Whitby Psychiatric Facility in Ontario, Canada.
- http://www.flickr.com/groups/whitbypsych/

Flickr: BrickWorks
- Images and art depicting the Don Valley Brickworks in Toronto, Ontario.
- http://www.flickr.com/groups/brickworks/

Cygnals Zine: Subway Secrets
- Pictures from tours of Toronto's abandoned subway stations.
- http://www.cygnals.com/zine/complete/subway.htm