After months of waiting, and proposals from 238 cities, Amazon has announced their short list of potential cities for its second headquarters (HQ2). The company had a few prerequisites: a metropolitan area with a population of greater than one million and the ability to attract and keep strong technical talent. The list of finalists surprised many, as it included locations that aren’t thought to be technology havens, such as Columbus and Indianapolis, and rejected applications from Detroit, Phoenix, and San Diego.