This website is a comprehensive resource for information on nuclear weapons. It is divided into major sections: science, history, library, media, almanac, and store. The science section is subdivided into the topics of atomic physics, nuclear fission, nuclear fusion, effects of nuclear weapons, and scenarios of nuclear explosions. Components of the history section include the Manhattan Project, the first nuclear reactor, the Trinity test, and nuclear weapons facilities. The library has a glossary, about 40 biographical sketches, the contents of approximately 100 original documents, summaries of arms control treaties from 1959 to 2005 with links to full texts, a timeline, a teacher's guide, web links, and book reviews. The media component has photographs, videos, six animations, and ten maps. The almanac includes sections on nuclear facilities, weapon stockpiles, nuclear forces, test sites, and accidents involving nuclear weapons. Finally, the store contains items related to nuclear issues and has descriptions of videos, books, and magazines with convenient links to buy or subscribe to them. The home page also features a This Month in Atomic History section, and a weblog provides news. The teacher’s guide in the library section helps to make the site suitable for college and high school level courses. A companion CD ROM produced by A.J. Software and Multimedia contains more in-depth information, photographs and documents.