In the most recent edition of Conde Nast magazine, there was an article about a chocolatier named John Scharffenberger. He currently has a line of chocolates available at Whole Foods - but his chocolates have a unique story. Scharffenberger not only finds the best cacao beans, but his company also treats local farmers fairly. The chocolate making process at Scharffen Berger is meticulous, thoughtful, and quality-minded.
I bought a limited edition Venezuelan dark chocolate called Cuyagua. I haven't tried it yet, but it smells fantastic.
In addition to buying Scharffen Berger chocolate, I also bought two chocolate bars from a company called Shaman Chocolates. This company is fair trade certified. As an added ethical bonus, Shaman Chocolates uses all profits from their chocolate to support the Huichol Indians.