Angels of the Underground - Flash-only site of a group of Toronto explorers.
Function - A stylishly chaotic collection of images focusing on decay in downtown Toronto.
Hamilton Urban Exploration Journals - An inconsistently designed set of pages describing one explorer's past and future excursions (no photos yet, and not much text either).
HR Urban Exploration - Extremely under construction site featuring photos of abandoned buildings in Whitby and Oshawa.
Infiltration - You are here, so clicking this link would be pointless. Don't waste your time.
Infiltrators: Be Quick or Be Dead - Pics, maps and descriptions related to several sites in Oakville, as well as a glossary and some legal advice.
Margins of Paradise - Graffiti and urban exploration photos mostly from around Toronto.
Nanoman's Piccah Page - Information relating to Whitby Psychiatic Hospital.
Ontario Abandoned Places - Awkward-to-navigate site with some useful information and some pictures relating to abandoned towns around the province. Lots of locations covered.
Recession Art - Photos of abandoned industrial sites around Ontario --- unfortunately, no descriptions of the trips or the photos are available.
Subway Secrets at Cygnals - Pictures and accounts of tours of Toronto's abandoned subway stations.
The Urban Landscape - Urban exploration in Ottawa, Gatineau and Montreal; focussed on abandoned buildings so far.
Undaground - Pictures and some text about expeditions to the top of the Royal York hotel and under the former Degrassi High.
Underground Belleville - Some photos and mission reports from a now-disbanded group of explorers based in Belleville.
University of Waterloo Service Tunnels - A brief photo tour of the tunnels under the University of Waterloo.
Urban Exploration Barrie - A loose affiliation of folks from in and around the Barrie Ontario area.
Urban-Ex London - They say not to be confused with "Urban Exploration London", but if that's the case why did they use this name? Anyhow, a site about exploring London and southwest Ontario.
Urban Exploration London - A well-established group of explorers exploring abandoned buildings and drains near the mighty Thames.
Urban Exploration Resource - Advice and discussion about some of the popular tunnels and abandoned buildings around Toronto.
Vanishing Point - An encyclopedic guide to Ontario drains, featuring useful advice, interesting write-ups and incredible photographs. Inspiring.
Viewing Hole Gallery - Good pictures and commentary on several expeditions, mostly in the Toronto area.

• Abandoned Farm Houses of Ontario - Photographic prints of abandoned farmhouses in Ontario. Taken by Allan Lewis.

• Axle's Dark Playgrounds - Photos from exploring in Ontario.

• Cygnals Zine: Subway Secrets - Pictures from tours of Toronto's abandoned subway stations.

• Dave Till: Toronto Ghost Signs - Flickr photo set with photos of old painted signs around Toronto.

• Edward Burtynsky - Photographer explores the intricate link between industry and nature. Based in Ontario.

• Flickr: Abandoned Niagara - Abandoned and decaying buildings, barns, and homes in the Niagara region of Ontario.

• Flickr: Air33 - A self-taught photographer living in Toronto. Architectural and industrial photography. Especially interested in exploring abandoned buildings.

• Flickr: BrickWorks - Images and art depicting the Don Valley Brickworks in Toronto, Ontario.

• Flickr: Creepy Ontario - This is a group dedicated to those who love to shoot pictures of the surreal, creepy and just plain unsettling.

• 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.

• Flickr: Thunder Bay In Decay - Decaying industrial and commercial buildings and miscellaneous debris in the area of Thunder Bay, Ontario.

• 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.

• Flickr: Toronto Urban Decay - Sharing pictures of neglected and abandoned beauty in Toronto.

• Flickr: Toronto Urban Exploration Photography - A group for Toronto urban exploration photography.

• Flickr: Urban Toronto - For those who are interested in exploring and documenting the urban landscape in Toronto.

• Flickr: Wasteland Warriors - Urban exploration, no armchair explorers here.

• Flickr: Whitby Psych - Photos and art depicting the infamous abandoned Whitby Psychiatric Facility in Ontario, Canada.

• Function - Urban explorations of Toronto, Ontario.

• 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.

• Infiltrators: Be Quick or Be Dead - Pictures, maps and descriptions related to several sites in Oakville, Ontario.

• Kendall Anderson - Abandonments, decay, industrial mayhem based in Ontario.

• Live Journal: Toronto Explorers - Post stories, pictures, locations and arrange meet ups with other explorers in the Toronto, Ontario area.

• Nanoman's Piccah Page - Information relating to Whitby Psychiatic Hospital.

• Ontario Abandoned Places - Features mines, railways, urban exploration locations such as factories and hospitals located in Ontario.

• Sean M.L. Galbraith - Photographer and professional urban planner in Toronto, Ontario. Observing and documenting urban life.

• Spacing - Understanding Toronto's urban landscape and public spaces.

• The Heritage Photography Project - Abandoned houses in Ontario. Over 150 pictures from Genesis Creative Services.

• The PhotoMat - Individual collection of photographs taken of urban decay in Toronto.

• The Vanishing Point - Chronicling and photographing storm drainage and abandonments in Ontario and further afield.

• The View From Up Here - Photoblog from around Ontario. Includes abandoned buildings, farmhouses and urban architecture.

• 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.

• University of Waterloo Service Tunnels - A brief photo tour of the tunnels under the University of Waterloo.

• UrbEx Barrie : CopySix - Acquaintances who love to capture images of delicious structural decay in Ontario.

• Urban Tresspasser - Exploring locations in Ontario. Photo weblog with some history of the sites.

• Worksongs - A photoblog showcasing abandoned places in and around the Toronto area.

• Deviant Art: Abandoned Echos - Alicia, Canadian experimental photographer. Includes old and abandoned structures.

• Drains Of My City - Showcasing urban exploration in Edmonton, Canada. Includes discussion forum, missions, pictures, and information.

• Flickr: Abandoned Quebec - A group to share photos of abandoned urban and rural places in Quebec.

• Flickr: Abandoned Saskatchewan - Rural Saskatchewan and signs that humans once were there.

• Flickr: Canadian Industry - Everything from the CPR to Research in Motion labs in Waterloo to 4-story-high oil sands trucks to old factories on the lachine canal to Burtynsky-esque photos of slag heaps in the Shield to the tar pools in Sydney.

• Flickr: Rural Canada - Pictures from rural areas in Canada, small towns, ghost towns and old buildings.

• Flickr: Vanished Montreal - Vintage pictures of Montreal and buildings or things that are going to be demolished soon.

• Flickr: Vanishing Vancouver - This group is for photos of disappearing aspects, or little fragments of Vancouver. Share photos of houses slowly falling apart, a building downtown facing the wrecking ball, or photos of some places that are already gone.

• Infiltration - Website on urban exploration, featuring a webring, dictionary, and many pointers.

• Montreal's Abandoned Buildings - Descriptions and pictures of abandoned buildings in Montreal, PQ

• New Bedlam Mental Hospital Patients Alumni - A Winnipeg-based explorer's attempt to preserve history, one photograph at a time.

• Night Photographer - A gallery of night photography capturing moonlit landscapes, abandoned places, lightning, fireworks. Larrie Thomson based in Edmonton, Alberta.

• SaskUrbEx.com - The only urban exploration site in Saskatchewan covering several locations in the province.

• The Urban Landscape Project - Urban exploration in Ottawa, Gatineau and Montreal. Photographing the remarkable details of everything from construction sites, bridges, and modern architectural wonders to tiny features of derelict and decaying structures.

• Urban Artography - Photography-oriented site featuring text updates and photo galleries which include tunnels, bridge rooms, construction, abandonments. Based in Edmonton, Alberta.

• Urban Exploration Alberta - Dedicated to the exploration of drains, tunnels, buildings, rooftops, mines, and bridge rooms, in Alberta, Canada.

• Urban Exploration Resource - Advice and discussion about urban exploration, focusing on Canadian exploring.

• Ghost Towns of Canada Chat - Forum for discussion. Requires registration.

• Ghost Towns of Western Canada Photo Gallery - A collection of photos of abandoned homes, churches, grain elevators, and other structures in the western provinces.

• GhostTownPix.com - Stories, photographs, and history of ghost towns and abandoned structures in Ontario and Alberta, Canada.

• Ontario Ghost Towns and Abandoned Places - Extensive collection of photographs, maps and directions, and short histories.

• Wikipedia: Ghost towns in Canada - Ghost towns listed in Wikipedia.

• Canadian Association of Professional Heritage Consultants - Provides a directory of Canadian professional heritage consultants, calendar of heritage events, recommended reading and list of heritage conferences.

• Heritage Foundation of Newfoundland - Aims to protect, preserve, and promote the province's built heritage. Descriptions and histories of registered heritage structures, some with images.

• Heritage Society of British Columbia - Aims to conserve historic buildings and other heritage resources. Activities, advice on maintenance and conservation of historic buildings.

• North Shore Heritage Preservation Society - Promotes the conservation of historic buildings on the North Shore of Vancouver, British Columbia.

Alberta Urban Exploration Alberta Some very nice work by urban explorers in Red Deer and other Alberta cities. Drains of my City The city is Edmonton, though the webmaster has made quite a few trips to other places, and covers more than just drains. The Corrosion Project: Industrial Archeology Industrial expeditions going all the way back to the mid-80s; mostly around Calgary but venturing into Saskatchewan. All About Ghosts: Alberta

A list of haunted places in the province, complete with links to information about each site.
British Columbia

Wraiths

Some very nice work by urban explorers in the Vancouver area.

All About Ghosts: British Columbia

A list of haunted places in the province, complete with links to information about each site.

Vancouver Paranormal

Haunted places explored in the world's most liveable city.
Manitoba

All About Ghosts: Manitoba

A list of haunted places in the province, complete with links to information about each site.
New Brunswick

Danger Force Urban Adventure

Exploring forgotten train stations and such in the province of New Brunswick.

All About Ghosts: New Brunswick

A list of haunted places in the province, complete with links to information about each site.
Newfoundland

Forgotten Newfoundland

Large, extensive site covering forgotten places in this Maritime province.

All About Ghosts: Newfoundland

A list of haunted places in the province, complete with links to information about each site.
Ontario Infiltration The original urban exploration website and webzine, about "places you're not supposed to go." Located in Toronto. Viewing Hole Gallery Shockingly good photos of off-limits places of all kinds. Headquartered in Toronto but featuring sites from New York State as well. HR - Urban Exploration Illicit tours of abandoned places in and around Toronto. UEL: Urban Exploration London Exploring the abandoned in London, Ontario, and surrounding areas. UE Canada

Nearly defunct explorers' site out of Barrie, Ontario.

All About Ghosts: Ontario

A list of haunted places in the province, complete with links to information about each site.

Spooky Ontario

Dedicated to haunted, possessed, and otherwise spooky locations in Ontario.
Quebec Urban Exploration Montreal Abandoned, occupied, or underground locations of Montreal, explored and photographed. UEQ: Urban Exploration Quebec Highly talented Quebec City explorers with a bilingual website. The Urban Landscape Explore a world closer than you think, in Quebec. Also featuring sites in Ottawa. Urban Recon Montreal

Industrial wastelands and shattered places in Montreal.

Collectif 401

Explorers somewhere in Quebec, but the site is in French, so I don't know much more than that.

All About Ghosts: Quebec

A list of haunted places in the province, complete with links to information about each site.

Le Spectre de Montreal

Ghost photos from around the city, particularly the cemetery at Notre-Dame-Des-Neiges.
Saskatchewan

All About Ghosts: Saskatchewan

A list of haunted places in the province, complete with links to information about each site.