Take a look at the first trailer for the City of Sinners & Saints, where social networking and cel-shaded cartoon avatars collide.
The City of Sinners & Saints is a virtual world, developed by Telos Productions, built with casual gaming and social networking in mind. Players can make friends, share photos, stand around dancing, or participate in games at various game rooms scattered across the world.
Honestly the most intriguing aspect of City of Sinners & Saints is the cel-shaded animation, which gives it a unique if slightly hideous look. Still, it might be fun if you're looking for a virtual world where everyone isn't just trying to sleep with everyone else.