I have an ever growing number of Squidoo sculpting tutorial lenses. Here's the current list, I hope you find them useful.
Polymer Clay Sculpting Tips and Techniques
Techniques for Curing Polymer Clay
Painting Polymer Clay Sculpture
Building Armatures for Polymer Clay Sculpture
Using Liquid Polymer Clay
Polymer Clay Sculpting Tools
And here are some miscellaneous lenses built to be useful for artists.
Taking Successful Photos of your Artwork
Resources for Figure Artists
Resources for Animal Artists
I've also been named a Squidoo Giant Squid which has really motivated me to want to create even more resources for sculptors and artists. So keep a look out here or on Squidoo for them.