CBC Kids Games

Canuck Rally
BMX Tricks
Matrix Moon Mayhem
Movin' in the Matrix
X Attack (like Space Invaders)
X-pansion

Learning Planet Games

ABC Order
The Number Train Game
Count Your Chickens
Time Works - Place the numbers on the clock
Mr. Elephant's Matching Game

Nick Jr. Games and Activites:

Nick Jr. Games and Activities
Dora the Explorer Driving Adventure

Nick.com Games:

RugRats Rescue
SpongeBob SquarePants Bumper Subs

Disney Online Games and Activities:

Bear in the Big Blue House Mix & Match
Stanley Games and Activities
Rolie Polie Olie Star Catcher

PBS Kids Educational Games:

Book Em! Silly Sentence Machine
Sea Ya! Build a Habitat
Cookie Monter's Letter of the Day (Sesame Street)
The Count's Number of the Day (Sesame Street)

Fisher-Price Games:

Catch a Crazy Daisy Game
Sweet Street Sundae Driver Game
Sweet Street Beauty Salon

Other Games and Activities:

Dr. Seuss's ABC Hide & Seek Games (Seussville.com)
Rainbow the Spouting Trout (Crayola)

Other interesting kids links:
Cozy Comfort Designs