This website provides handy links to information about cyclic and harmonic phenonena.
Chronobiology by Dobovick et al. at Princeton.
Chronotherapy : What makes you tick. The Searles Corp.
Interview with Timothy H. Monk
Biological Rythms Research (a journal)
Edward F. Block IV, Ph.D. the author of The Microcosm Within
Bio-magnetism Another informative page by Mike Levin
Harmonic Cycles : a great page of links
Stock Cycles Forecast: is it an advertisment?
Cycles in the Universe: comprehensive list of links by Ray Tomes.