- The Effects of Nuclear Weapons
- Annotated bibliography for nuclear fission from the Alsos Digital Library Archived 2005-12-10 at the Wayback Machine
- The Discovery of Nuclear Fission Archived 2010-02-16 at the Wayback Machine Historical account complete with audio and teacher's guides from the American Institute of Physics History Center
- atomicarchive.com Nuclear Fission Explained
- Nuclear Files.org What is Nuclear Fission?
- Nuclear Fission Animation