Chessarts
   Handcrafted chessmen, each one an individual. Production information, history, and a gallery.
   http://chessarts.de/

Creative Paperclay
   Offers air hardening modeling materials and clays. Also projects, lesson plans, and guidelines.
   http://www.paperclay.com/

PaperClay Products
   Technical information, how it works, and product descriptions.
   http://www.paperclay.co.uk/

Pioneer Thinking: How To Make Modeling Clay
   Variety of recipes using household items.
   http://www.pioneerthinking.com/modelingclay.html

PolymerCAFE Magazine
   Quarterly print magazine exploring the art and craft of polymer clay. Subscription information and a submission area.
   http://www.polymercafe.com/

Salt Dough World
   Recipes, tips, a photo gallery of finished projects, and step by step instructions.
   http://www.multihobbies.com/saltdough/