Silly Books, K-5

http://www.sillybooks.net/default.htm
Silly Books provides animated and colorful books that include music, sound effects, and voices. It also includes cartoons, music, puzzles, games, and jokes. As students follow along, the words are highlighted as they are read aloud. The Classroom section provides some lesson plans for teachers and other support materials. Writing contests are also available, and the stories are published on the site.