On his blog Cooking Issues (shared with Nils Norén+others), FCI's Dave Arnold has posted a great article on one of the kitchen's oldest cooking materials, cast iron. As he usually does, Arnold includes plenty of information that even the most seasoned cooks find useful. He includes very specific information regarding maintenance and seasoning and even explains why many commonly accepted cast iron myths are incorrect (e.g. it actually does not heat evenly on a burner & you don't necessarily need to avoid soap when cleaning cast iron).