75mg: This is a collection of paintings involving abandoned institutions. Includes photographs of sites visited.
Bill Hocker Photographs: Collection of industrial photographs.
Cathedrals of Decay: Galleries and thoughts from the photographer.
Dylan Trigg: The Poetics of Decay: Resource for essays on decay, urban exploration and the aesthetics of urban ruins.
Forsaken By Society Trilogy - Places: CARF's photo blog. Places forgotten by society.
Industrial Archaeology: Buildings and other man made creations from the start of the automobile age that have started to decay.
Jack Gardens: Photo gallery of modern ruins, urban exploration.
Jinx Magazine: Publishes reports on urban exploration and international adventure. The magazine has been published, irregularly, since 1997.
Macca's Stuff: Urban Exploration: Commentary and reviews of urban exploration sites.
Modern Ruins: Photographic essays include explorations of a girls orphanage, insane asylum, hospital, crypt, and steel plant.
Photographing Abandoned Houses: Tips and suggestion on how to turn old abandoned houses, into fantastic photographic subjects.
ProjectZ: A collection of articles concerning urban exploration, put together by a group of likeminded hackers, including in-depth reports of abandoned underground station explorations.
PURP: Penguins Under a Reactionary Planet: Draining and stencil graffitti. Urban exploration and graphic art.
Ratfinks: Urban exploration journal.
RottenEggs Urban Adventures: Commercial site that allows registered users to post messages on urban adventures and explorations.
Salon: Online and Underground: Article by Janelle Brown about the urban exploration trend.
Sleepy City: Photography site dedicated to underground tunnels, derelict industrial sites and urban ruins. Includes categorized images, message boards, and links.
Sleepy City: Photographically deconstructing the urban environment. Underground tunnels, derelict industrial sites and urban ruins.
The Urban Explorers Network: Longest-running cooperative collection of UE information on the Web. Information on sites from around the world, submitted by fellow explorers.
Thom: Decay Gallery: Craig S. Thom, photo gallery of abandoned buildings and places. Available to be sent as postcards.
Urban Sites by City: An archive of information on underground urban sites and structures throughout the world.
Wikipedia: Urban Exploration: UE guide from the free encyclopedia.
Zone Tour: A non-profit association to promote industrial archaeology and architecture, and to reveal a particular point of view about the city. Database of urban exploration. International but mainly France.