Fun websites for 13 year olds

Code of Everand is a free online mmorpg for kids that's safe (no free chat) and has no violent content. Players are called Pathfinders and have to travel the world of Everand looking for the elusive "code". Along the way they do quests and defeat monsters in the deadly spirit channels that criss-cross the world. There are 100 levels to work through and players get a critter (pet) too.