The Snow Crystals Web site was created by physics professor Ken Libbrecht from the California Institute of Technology. Visitors get to explore how snow crystals are created and their structure. The main page describes natural and designer snowflakes, which are created in the laboratory, along with dozens of spectacular photographs. The author also details and illustrates the crystalline lattice formed in snowflakes. These features, along with the many links, combine to make a very interesting and informative Web site.