Ten Ton Hamster - Your Games. Your Friends. Your Worlds.

From Wikipedia:

Neopets is based around the eponymous virtual pets that inhabit the virtual world of Neopia. Visitors can create an account and take care of up to four virtual pets, buying them food, toys, clothes, and other accessories using a virtual currency called Neopoints. Neopoints can be earned through playing games, investing in the stock market, trading, winning contests and making your own shop. Users can explore the world of Neopia with their Neopets and interact with each other through the NeoBoards, NeoMail, and guilds.