A great find for web-product product people, copywriters, designers, UX folk & IA’s. 7 Strategic design principles to help make better websites, but you could use these in designing lots of things now that I think about it.
Too many choices — the number of choices effects people’s purchasing behavior
Social validation — peer reviews play a huge factor in purchasing
Scarcity — items with limited availability seem to be more valuable
Food, Sex and Danger — very powerful instinctual triggers for action
Power of faces — our brains are predisposed to looking at faces
Stories — brains process information best in story form
Commitments — start asking people to make small commitments to your site which grow larger with time
(Rules parsed from the video by the always awesome folks at Zurb!)