The beetles, or Coleoptera, are so abundant that it is said that one in every five living species on earth is a beetle. This Topic in Depth explores the vast insect order of Coleoptera. From the Zoological Institute at the Russian Academy of Sciences, the first site (1) contains beautiful images and information sections regarding Morphology and Anatomy, Taxonomy and Phylogeny, Distribution, Collections, and Publications. The second (2) site was created by Vratislav Bejsak-Colloredo-Mansfeld (of the University of Sydney) for beetle collectors, researchers, ecologists, entomologists, and others interested in beetles. The site contains links to a Coleoptera Bibliography; Coleoptera Databases and Catalogues; A Glossary of Entomological Terms; Images and Sound Library; and more. The third (3) site presents the Coleopterists Society, an international organization devoted to the study of beetles. The website contains information about the Society, upcoming meetings, prizes and awards, beetle conservation, resources, and news. From the University of Texas in Austin, the fourth (4) website presents Water Beetle World, the Newsletter for aquatic Coleoptera workers. The Newsletter serves as a forum for workers to share publication announcements, images, species checklists, resources, and more. The fifth (5) website presents the Purple Loosestrife Project, which was developed collaboratively by Michigan State University and Michigan Sea Grant Extension. The Project, designed for K-12 teachers and students, as well as other concerned citizens, involves the use of certain beetle species to help control the spread of Purple Loosestrife, and encourage the recovery of native vegetation. From Insecta Inspecta World, a project of the Honors Academy at Thornton Jr. High School in Fremont, CA (reported on in the October 18, 2002 NSDL Scout Report for the Life Sciences), the sixth (6) site shares concise information about, and several great images of, Scarab beetles. From the archives of Iowa State University's Entomology Image Gallery, the final (7) site contains a collection of good-quality Coleoptera images including bean leaf beetles, blister beetles, wireworms, flea beetles, corn rootworms, weevils, and ladybird beetles.