I got this stuff on an e-mail.
I found it to be pretty interesting. Let me know what you think.
Sorry if this have been brought up before...
Link:
The Ladder Theory
Introduction to the Ladder
The ladder theory is a theory of adult male/female interaction. It has its basis in many years of sociological field testing. it was first conceptualized in 1994 in Exeter, CA. My acknowledgements to Jared Whitson for his role in formalizing the theory.