Looks like the website known as Digimill that strive to become a one stop shop for 3D news, discussion and help has fallen off the face of the Internet along with my posts for the site. I've been uploading a few of the important posts from the website.
My tutorial about the Principles of Design can be found HERE, it talks about Contrast, Balance, Scale and Proportion, Repetition and Rhythm, Unity and Variety, Directional Forces, Emphasis and Subordination and contains a few photos from myself. It's an easy read but you can learn a lot from it. It was written about March 2007.
You can view it HERE
What do you think of these tutorials? Are they helpful? Leave a comment and tell me.