Websites
Dr. Seuss's official website is one of those flash sites that'll make your eyes happy while your Internet connection groans under the pressure.
Here's the website for the Dr. Seuss National Memorial. Comes with free biography and directions.
You want some information on Dr. Seuss? DrSeuss.org has more information than you can shake a Thing 1 (or 2) at.
It doesn't get better than Seussy art.
And they'll never leave your head (in a good way). Check out the website for Seussical, the Dr. Seuss musical.
Dr. Seuss and Mr. Geisel: A Biography is exactly what it sounds like. And it's available to sample thanks to Google Books.
The Secret Art of Dr. Seuss collects and preserves some of Seuss's more contemporary art pieces. They're neat.
Movie or TV Productions
Seuss on the Loose collects three Seuss stories into one fantastic musically animated package. Comes with Sneetches and Zax as well as green eggs and ham.
Articles and Interviews
Dr. Seuss was a shy one. Thankfully, his widow, Audrey, was not. And so we get this interview.
One article with ten things you may or may not have known about Dr. Seuss.
The New York Times discusses three authors of children's books who broke all the rules. Guess who is one of the three? Go on, guess.
Check out this article, which takes an earnest look at Dr. Seuss's more dividing political cartoons.
Video
The Sneetches are given the love in his musical rendition of the story. Here is the entire cartoon for your viewing pleasure.
The Sneetches get all the attention, but the Zax deserve some too.
A fan-made version of "What Was I Scared Of?" done in some seriously awesome Claymation. (Complete with fan-made typos.)
Dr. Seuss: Rhymes and Reasons is a documentary about the life and works of Dr. Seuss. Warning: celebrities pretending they know what they are talking about are present within.
Audio
Here's an excellent reading of the original story—pictures of Sneetches included.
Put on your tap shoes and check out the musical soundtrack to Seussical, the Dr. Seuss Broadway show.
Images
Dr. Seuss equipped with a wise, old-man beard.
And here's a younger Dr. Seuss for your viewing pleasure.
The Sneetches looking all smug and Sneetchy on their own cover.
The cover for a standalone "What Was I Scared Of?" edition. With glow-in-the-dark pages? Yes, please.
Dr. Seuss's very own, genuine stamp. Adds a sense of whimsy to mailing even the largest of bills.