A Boutique Industry is a fabulous blog I recommend you all check out.
It is written from a shop owners point of view, and covers topics that are relevant to ALL entrepreneurs.
"A Boutique Industry is designed to speak to other women who have chosen a lifestyle of entrepreneurship, or who dream of doing so. With honesty and humor, Abby discusses the ups and downs, highs and lows, decisions and moments of destiny, that go into starting and running a creative business."
If you start at the very beginning of her blog, you will find posts about; approaching stores, finding your niche, dealing with rejection, branding yourself etc.