Spider WebWatch is a biodiversity monitoring effort for biologists, naturalists, educators and students. From more than 4,400 species of spiders in North America, 9 were chosen as eight-legged ambassadors. Learn to identify the spiders below, view the sighting reports, and read some active discussions. You can get started with your own submissions, take a peek at what goes on here, or dig a little deeper into the science of arachnology using the links at right.