What are some cool online games with avatars and making your own house stuff like that

weeworld.com is really fun, you make your own house and avatar.
gaiaonline.com is also good, but sometimes doesn't work.
poptropica is one of my favorites, you complete lots of cool islands and get medals
woozworld is another website like this, you can buy clothes and furniture and roam around the world and create your own unitz
club penguin is also the same, except you are a penguin.