I recently had the opportunity to beta test some chocolate from TCHO, San Francisco's newest (and only) chocolate factory. Wow! It has more of what I eat chocolate for. If you like dark chocolate and live in the San Francisco area, you should check it out.
During the beta period you need to order the chocolate on the web site and pick it up in person, so if you are heading to Boston, stop by at Pier 17 and bring some back with you.