Assorted links by Tyler Cowen August 11, 2009 at 12:34 pm in Web/Tech 1. Markets in everything: The Twitter Opera, from Covent Garden. 2. IP norms and stand-up comedy, and a comment. 3. Book covers that were not meant to be. 4. The importance of the NYC subway. 5. Chris Masse sends me a long McKinsey study on the economics of prizes.