Opportunity Atlas is a miscellaneous web resource for discovery, directories, archives, web culture, or useful tools.
Earthdata Search is a browser-based tool for searching, discovering, visualizing, refining and accessing NASA Earth Observation data. The site requires a JavaScript-aware browser, and an upgraded browser is needed to use it. Earthdata Access is offered as a Section 508 accessible alternative.
An online map of England's light pollution and dark skies. Users can search by postcode, district or National Character Area, tick boundaries in the legend to display them, and click the map for detailed information about an area. The map uses OpenStreetMap and World Imagery data and was developed by LUC.
NukeSim is an educational nuclear explosion simulator with effects modeling. It lets users run scenarios on a map, compare weapon profiles, view blast, thermal, radiation and fallout overlays, browse a global arsenal database, read articles and follow external nuclear news. The project states it is inspired by NUKEMAP.
Historic Aerials is an online collection of historical aerial imagery, topographic maps, and modern aerials covering the United States. An interactive viewer lets users explore locations, zoom, and switch between decades, with imagery dating back to the 1920s. The service offers subscriptions and individual purchases of digital downloads and prints.
The official Organic Maps Telegram group covers Organic Maps, described as open-source, privacy-friendly, fast and detailed offline maps for iOS and Android. The group also links to ways of supporting the app's development and to a channel for Russian speakers.
A World-Wide Web Virtual Library site that provided an organized overview of the history of cartography, including resources and activities, with links to map image sites and web articles. As of 1 January 2026, after almost 30 years, the site has been discontinued.
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Earthdata Search is a browser-based tool for searching, discovering, visualizing, refining and accessing NASA Earth Observation data. The site requires a JavaScript-aware browser, and an upgraded browser is needed to use it. Earthdata Access is offered as a Section 508 accessible alternative.
An online map of England's light pollution and dark skies. Users can search by postcode, district or National Character Area, tick boundaries in the legend to display them, and click the map for detailed information about an area. The map uses OpenStreetMap and World Imagery data and was developed by LUC.
NukeSim is an educational nuclear explosion simulator with effects modeling. It lets users run scenarios on a map, compare weapon profiles, view blast, thermal, radiation and fallout overlays, browse a global arsenal database, read articles and follow external nuclear news. The project states it is inspired by NUKEMAP.
Historic Aerials is an online collection of historical aerial imagery, topographic maps, and modern aerials covering the United States. An interactive viewer lets users explore locations, zoom, and switch between decades, with imagery dating back to the 1920s. The service offers subscriptions and individual purchases of digital downloads and prints.
The official Organic Maps Telegram group covers Organic Maps, described as open-source, privacy-friendly, fast and detailed offline maps for iOS and Android. The group also links to ways of supporting the app's development and to a channel for Russian speakers.
A World-Wide Web Virtual Library site that provided an organized overview of the history of cartography, including resources and activities, with links to map image sites and web articles. As of 1 January 2026, after almost 30 years, the site has been discontinued.
