Trevor,
I'd recommend the astrology entry of the Skeptics Dictionary at
http://skepdic.com/astrolgy.html. While you do not appear to be
discussing the traditional form of astrology, your ideas contain the
same general theme of celestial events (in the form of gravity)
influencing human thought or behavior.
I'd also recommend any of the entries in the Skeptics Dictionary for
their well-balanced and thoughtful treatment of many non-mainstream
theories that have aspects that are testable by the scientific
method.
For other general resources on skeptical inquiry, I'd recommend
Google's list at
http://directory.google.com/Top/Science/Science_in_Society/Skeptical_Inquiry/
Jeff
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http://www.netjeff.com/
