Zoos and museums are often good sources of information as are scholarly societies. Bigger zoos often have very rich sites, with a wide variety of information. Look for education resources, or search the site by taxa. Here are a few to try:
"The American Institute of Biological Sciences is a nonprofit 501(c)(3) scientific association dedicated to advancing biological research and education for the welfare of society. AIBS works to ensure that the public, legislators, funders, and the community of biologists have access to and use information that will guide them in making informed decisions about matters that require biological knowledge. "
This society is the major publisher of entomological journals. Under "Resources" check out the Frequently Asked questions. Under "Publications", there is a list of Common Names of Insects and Related organisms.
This site contains information on specific animals. It also provides live cams and enables visitors to the site to read the latest issue of ZooNooz online.
SICB, formally, the American Society of Zoologists, promotes research, education, public awareness and understanding of living organisms from molecules and cells to ecology and evolution. SICB encourages interdisciplinary cooperative research that integrates new models and methodologies to enhance research and education.