The International Barcode of Life project (iBOL), the largest biodiversity genomics initiative ever undertaken, is unlocking the door to that world by creating a digital identification system for life. This is so interesting! And the blog.
Sorry, I keep adding to this post, but wow, great stuff. Catepillar identification database. I just wish the images were larger!
Insects of Papua Indonesia
UF/IFAS Entomology and Nematology Department's Featured Creatures
Fold-out Charts for field guides