I agree with sunshinecottage, lighter and brighter thumbnails to catch your eye. Also, you could start a twitter account, it's super easy. I have a totally different following there than on FB. And, do you have a FB page as your business? that way it's all about your etsy store, not mixed in with your personal stuff. (although, I post on my personal page too) You could also join the Etsian Newbie Team, they are always willing to "like"each other, exchange links, whatever. And then there's SEO. It can be tedious and time consuming, but helpful in getting you found on search engines. Search for it in Community Forums on Etsy, there is a ton about it. You could also just search the forums for "promoting", I'm sure you'd get a ton of threads.
Good Luck - KaylaB