Brian Selznick - his site for The Invention of Hugo Cabret has so many great things that you just have to check it out for yourself, but be warned it could take hours to get through all the cool stuff, especially the links.
Jarrett J. Krosoczka - author of Bubble Bath Pirates and Punk Farm, his site features a funny "fake" bio, his childhood drawings and even how to pronounce his last name.
Mo Willems - the hysterical author of Don't Let the Pigeon Drive the Bus and Knuffle Bunny has a special Pigeon contest and coloring pages on his site; and Mo's blog is full of sketches and funny stories from his everyday life.
Guy's Read - it's not really an author site, but it does seem to be the brainchild of author Jon Scieszka, who is the first National Ambassador for Young People's Literature. The site, which also inspired a book called Guys Read, has lots of great book suggestions for little and big guys.
Tomie dePaola - see pictures of his dog, Bronte, some of his non-book art, coloring pages and more!
Stay tuned for the ladies next week!

*NOTE: The winner of the Three Apples Book Award, a New York State children's choice award, has just been announced: Green Eggs and Ham by Dr. Seuss.