Some of the best information I have found on the web over the years has been posted by William Lasley from About.com/Arts and Crafts Business.
On his website, he has a massive amount of information on starting a craft business, finding supplies, how to work a craft or trade show, how to grow your business — even how to hire employees!
Although William has limited information on wholesaling your crafts, his website is a must read for any new crafter or producer wanted to sell their products.
You can also subscribe to his weekly newletters by adding your email to the newsletter sign up boxes throughout his website.
If you have check out his site yet, I suggest you do today!