- Current World Nuclear Arsenals
- Current World Nuclear Arsenals has estimates of nuclear arsenals in the respective countries.
- General
- Nuclear Weapon Archive from Carey Sublette is a reliable source of information and has links to other sources and an informative FAQ.
- The Federation of American Scientists provide solid information on weapons of mass destruction, including nuclear weapons and their effects
- Alsos Digital Library for Nuclear Issues – contains many resources related to nuclear weapons, including a historical and technical overview and searchable bibliography of web and print resources.
- Everything you wanted to know about nuclear technology – Provided by New Scientist.
- Congressional Research Service (CRS) Reports regarding Nuclear weapons
- Video archive of US, Soviet, UK, Chinese and French Nuclear Weapon Testing at sonicbomb.com
- Historical
- The Manhattan Project: Making the Atomic Bomb at AtomicArchive.com
- Los Alamos National Laboratory – History (U.S. nuclear history)
- Race for the Superbomb, PBS website on the history of the H-bomb
- U.S. nuclear test photographs from the DOE Nevada Site Office
- U.S. nuclear test film clips from the DOE Nevada Site Office
- Effects
- Hans Bethe talking about his shock of seeing the after effects of Hiroshima on Peoples Archive.
- Nuclear weapon simulator for several major US cities, from Federation of American Scientists
- HYDESim: High-Yield Detonatonation Effects Simulator Another Nuclear weapon simulator with a few more features based on the "The Effects of Nuclear Weapons", 3rd Edition, by Samuel Glasstone and Philip J. Dolan.
- Fallout Calculator for various regions, from Federation of American Scientists
- Example scenarios – Two scenarios of a nuclear explosion on two United States cities, from AtomicArchive.com
- Effects of Nuclear weapons These tables describe the effects of various nuclear blast sizes. All figures are for 15 mph (24 km/h) winds. Thermal burns represent injuries to an unprotected person. The legend describes the data.
- Effects of nuclear weapons from AtomicArchive.com
- The Effects of Nuclear Weapons by Samuel Glasstone and Philip J. Dolan (1977 edn.) – an official text of the US government on weapons effects which is generally considered definitive
- Issues
- "The Nuclear Weapons Debate" - OneWorld.net's Perspectives Magazine, May 2005
- "Nuclear Power and Nuclear Weapons: Making the Connections" – an article about the connections between nuclear power and nuclear weapons development by an anti-nuclear group.
- Nuclear War Survival Skills is a public domain text about civil defense.
- IPPNW: International Physicians for the Prevention of Nuclear War – Nobel Peace Prize-winning organization with information about the medical consequences of nuclear weapons, war and militarization.
- Bulletin of the Atomic Scientists – Magazine founded in 1945 by Manhattan Project scientists. Covers nuclear weapons proliferation and many other global security issues. See this page for comprehensive data on nuclear weapons worldwide.
- 50 Facts About U.S. Nuclear Weapons – Largest, smallest, number, cost, etc.
- Nuclear Files.org covers the history of nuclear weapons and explores the political, legal and ethical challenges of the Nuclear Age.
- Union of Concerned Scientists – Nuclear Policy, weapons, testing, technical issues, and arms control.
- Nuclear Ambitions - The World's Deadly Arsenal - Independent news on issues relating to nuclear weapons and disarmament by the news agency Inter Press Service