xkcd is a webcomic created by Randall Munroe. The comic's tagline describes it as "a webcomic of romance, sarcasm, math, and language." It has been recognized in such mainstream media as The Guardian and The New York Times.
Wildlife and natural history artist Karen Carr, with illustrations and sculpture featuring dinosaurs, North American and African wildlife, and other environmental themes.
The American Museum of Natural History has put out an app that lets you peruse dinosaur images and information, almost as if you were at the museum itself.