If you run, or know of, a site I should have listed here, please let me know!

The official Seussical website: Seussical
A great page about the composer and lyricist: In Rhythm and Rhyme - The Ahrens & Flaherty Website
Pictures from a high school production: Western High School's "Seussical"
More pictures from another amateur production: Seussical pictures - White Rock, BC