Carnegie Library: Homework resources from the Carnegie Library of Pittsburgh.
Discovery Schools: Get homework help from the school sponsored by the Discovery Channel.
Frostburg State: View articles, tutorials, and online quizzes from the chemistry department at Frostburg State University in Maryland.
Yahoo: Yahoo's list of chemistry resources on the Web.
Los Alamos: An interactive periodic table of the elements presented by the National Laboratory's Chemistry Division at Los Alamos.
Visual Elements: A stunning visual representation of the periodic table by the RSC's chemical science network.