It’s a bit old, but I discovered these links today. Phil Haack collected together in a post 19 Eponymous Laws Of Software Development, and Joey deVilla, inspired by Phil’s article, collected more laws, axioms and rules pertaining to mainstream software development and put them in a nice, easy-to-read table in Laws of Software Development.
My personal favorite is the Conway’s Law:
Organizations which design systems are constrained to produce designs which are copies of the communication structures of these organizations.
Which is your personal favorite law?