Then you should! It's great for handmade businesses and gives lots of practical advice for your online shops (if you have them) and has some good tips for photography. I don't always follow their advice as I don't have much time to spare but you certainly should!
One of their recent posts about copycats struck a chord* with me and gives a new perspective on something that can make your heart sink. Well worth a quick read :)
*My work isn't rocket science but it still hurts when people copy it - boo to copiers who have no imagination of their own!