The Little Critters site is based on the books by Mercer Mayer.  The site has an assortment of games and interactive, animated stories.  You can click on each page of the stories and the characters and  more...

Barefoot Books, the children’s book publisher, has printable activity sheets for many of their book titles, including the Bear and Cleo series. The activities include arts and crafts, storytelling ideas, and word and  more...