Why the place to choose to live is the most important decision for your startup
thebln.com
thebln.com
It is downloadable - and an alternative to buying the book, it you don't need all the accompanying prose analysis from Richard Florida.
It's relevance on HN might not be so much in where you live to develop your startup as in thinking about how markets will differ in different cities/environs... with implications for how to localize marketing of an app differently to tap different sub-cultures (since they are not all filled with Florida's "creative class."