Well they’re not laws in the classical sense.
The number of users increases growth expotentially in a truly social system.
Technology doubles every 18 months.
Half of your profits are hidden in the long tail. How do you unleash them?
80/20 rule aka Pareto Principle
Take these rules. Apply them to your unique problems, business model, whatever! Now see what opportunities these yield.
Work expands so as to fill the time available for its completion.
Give them all a read (links are to wikipedia entries), compelling thoughts & implications.