Share 'The Business of Chocolate'

Hi Everyone, Can someone tell me where I can find information on the business of chocolate?  I'm looking to learn: 1. How to choose a regional market (I want to market chocolate online but also in a city/region  with enough population to sustain a local artisanal chocolate business). 2. How much chocolate one needs to produce and sell for every 25K net income desired (I'm sure there are variab…