Researchers and Writers on Magnetism, Magnetic Fields, and related:
Ighina, Pier Luigi
Leedskalnin, Edward (Did E.L. develop a magnetic way of lifting the huge rocks, or create a type of magnet out of them?)
Wheeler, Kenneth (ESTC)
Websites focusing on Magnetism, Magnetic fields, and Related:
http://magneticuniverse.com/ (focuses on Leedskalnin's work and Coral Castle)