This list comes from a poll conducted by Betsy Bird, who was at that time a youth librarian at the New York Public Library. These are wonderful books for reading with and sharing with your children! You can view a detailed version of the list on her blog, as well as a printable version of the list. I'm happy to say I've read most of them.
Author Mo Willems known best for Knuffle Bunny, Pigeon, and his Piggie and Elephant Series has create a really fun web site. Create a hot dog, print off a coloring page, make Elephant and Piggie dance as well as other fun activities.