KidsClick! Web Search for Kids by Librarians
http://www.kidsclick.org

Annotated directory of websites created for kids by librarians. Searchable by subject, reading level and degree of picture content.

Yahoo! Kids Study Zone
http://kids.yahoo.com/learn/index

Fun and educational resources for kids with games, animals, music, jokes, movies, news, astrology, TV, science, e-cards, reference, and more.