I'm really appreciating Etsy right now. They just published a free guide to Search Engine Optimization, specifically for use on Etsy and it's really good! I've already made significant improvements to my shop there and plan to figure out ways to do the same for my own websites off of Etsy. One really great tool they just added to their site is a way to see what a listing there will look like in a Google search. I used that this morning and revamped my shop announcement until I liked what I saw the improvements did.