Field Guides

Animal Diversity Web - http://animaldiversity.ummz.umich.edu/index.html
Collection of information and pictures about animals. Search for individual species to find information and images.

eNature.com - http://www.enature.com/
A wonderful place to find online field guides for amphibians, birds, fishes, mammals, seashells, and more.

Insectclopedia - http://www.insectclopedia.com/
Species identification, research and resources and bug associations.