Etsy.com is the COOOOOLEST online marketplace for all things handmade. I have a friend who uses Etsy to sell her awesome handmade earrings (my favorites are the ones she makes out of Lego minifigs). I'm now a member, and as of today, I have my own etsy Store. Right now, I only have one item for sale, a 13-page PDF file of instructions on how to make a jean quilt out of old jeans, but in time, I hope to expand into other "upcycled" crafts and instruction booklets.
I hope you'll stop by and take a look!