Tracey Jacobson is the designer and also a fantastic blogger. Her blog is bright and cheerful and informative. I spent a lot of time looking at the tutorials she has up, as well as pictures of her glorious quilts! I'd definitely urge you take a moment and go visit her site!
Also, while I have never done a block tutorial, I have watched and followed many and Quilt Story has a link-up that has close to 90 block tutorials. Check them out and if you have a block tutorial that you yourself have done, link-up!