Here's some links you might find interesting:

http://www.catholic-kids.com/

The Rosary This website tells you what a Scriptural Rosary is and all about the mysteries.

The Rosary for Children  A child friendly site about the Holy Rosary.

The Most Holy Rosary  A great children's site about Mary and the Rosary.

Jesus is My Friend   A colorful site packed with information

Good Morning Jesus A nice morning prayer to Jesus

Catholic Kids All about being a Catholic Kid

EWTN for Kids

Ainglkisses - A fun Catholic site for kids and their parents

Examine your Conscience  A site to help you examine your conscience before Confession.

Arts and Crafts

Just for Kids Magazine - a Christian Magazine- just for kids!