Other
Conchologists of America, Inc.
Everything you ever needed to know about mollusks is found in this thorough site. The site also provides information on collecting conch shells, or shells of mollusks. It is a worldwide hobby.
CK-12 Foundation
Ck 12: Life Science: Importance of Mollusks
[Free Registration/Login may be required to access all resource tools.] Mollusks are important in a variety of ways; they are used as food, for decoration, in jewelry, and in scientific studies. They are even used as roadbed material and...
PBS
Newton's Apple: Black Pearls
A lab activity to illicit discussion/understanding of the way in which mollusks produce an economic product.