Lots of interesting bits of information about nuclear weapons. Nuclear Information Service . Located at Los Alamos, this is the site to go to first for nuclear physics data. This is an excellent source of nuclear physics data also. Announcement and charter for the group.
Technical content is good.
The number of sites, for the High Energy Weapons Archive and their location on the net, has varied since the Archive's founding. All new material will appear there first. The 1997 Archives Check here for 1997 stuff no longer on the list above. The 1994-1995 Archives Stay tuned for more developments. Submissions are welcome.