There are so many awesome ways to advertise your shop and different things work for different folks. I do really well on facebook now that I have a following of over 300 people and recently I started using the facebook page to promote my blog too, which has the same name - regrowroots.wordpress.com ... which leads me to my VERY favorite way to promote - my blog! I love to write and really rarely write about my business... but since I have a button on the top of my blog that leads people to my shop, I get lots of hits from there. I update the blog pretty regularly and have a good following there so it works for me. I've also been featured on some other blogs and have ads on a few blogs that I get some traffic from.
