Scientific Reference Resources - Publishes monthly catalogues of scientific literature: publishes Arthropod Endocrinology News, the Directory of Arthropod Endocrinologists, and New Entomological Taxa. Also includes other scientific resources.Invertebrate Anatomy - A library of anatomical descriptions and dissection guides by Richard Fox of Lander University. Emphasis on southeastern United States species.
Sonoran Arthropod Studies Institute - Insects, arachnids, and other arthropods that affect the Sonoran ecosystem. Located in Tucson, Arizona.
GLIDE - The Global Litter Invertebrate Decomposition Experiment to assess rates of decomposition while controlling for climatic factors across latitudes and biomes. Includes image gallery of mites, hexapods, opilionids, ostrocods, and nematodes.
Urban Entomology by Walter Ebeling - Online book (published 1975) discusses arthropod pests found in the urban environment and home, including insects and other arthropods that bite, attack materials, cause allergies, and/or are parasitic on people and pets.