Amazing magnets (4,691)
Maybe not amazing, but certainly adequate!
Forcefield (3,693)
AKA wondermagnet.com, specializes in surplus magnets, but also sells a few other goodies like ferrofluid. Lots of cool project ideas, too.
K & J Magnetics (5,962)
Excellent source of surplus rare-earth magnets
Magnets at United Nuclear (3,686)
Like other shops, United Nuclear sells dangerously large magnets. But United Nuclear shows giant magnets sitting on a person's hand. If you've ever held a strong magnet *one tenth* the size of those, you won't be able to look at the pictures on this web page without thinking about broken bones.
