I knew about Etsy, and created a store (actually just secured the name) back in August. Several months later, after being consumed with knitting, I heard about a workshop by a local jeweler on how to start an Etsy shop! It was way too short - there's just too much to learn, but the teacher was great and inspirational.
I'd like to thank Beth Millner and the e-Loft for hosting this great, free workshop. Beth also has an outstanding jewelry business blog, check it out!