In an attempt to catalog creatures from around the globe, American Monsters has divided them into a number of categories. The site has separate sections for sea monsters and lake monsters (the latter refers to creatures like the Loch Ness monster and Ogo Pogo) and an area for animals thought to be extinct, be they dinosaurs or right whales. It tracks peculiar birds and alleged animal hybrids: One of the latter entries discusses African camel-leopard hybrids, for example, while another talks about a Vermont-based "coonigator," a reputedly terrifying raccoon-alligator combo.

This Web page boasts a discussion forum, a links page, a few videos and even an e-store, but its most entertaining feature is a Monster Map, which tracks the locations of creature sightings. The map is, as yet, a work in progress, but even in its current incomplete state it provides a wealth of entertainment for anyone interested in the offbeat, improbable or purely bizarre. American Monsters is also home to a gallery of depictions of cryptozoological specimens. Most of this gallery's images are, not surprisingly, drawings, but one section, called Curious Carcasses, is more photo-intensive. (Given its subject matter, it is also not for the faint of heart.)

American Monsters encourages contact from its audience, soliciting reports of sightings and also giving space to a few skeptics. This willingness to listen, to believers and debunkers alike, gives the site a relaxed, welcoming atmosphere.