IMVU is a 3D instant messenger program. Its like MSN but instead of a 2D interface you have a 3D one where you can view and dress your avatar with accessories and themchat with people.

Matchmaking System

IMVU has a cool matchmaking button which will automatically hook you up with somebody that has similar interests to you.

User created content

Many users on IMVU have created and now sell their own special content on the IMVU marketplace; some of the stuff people have made is sooo cool :D

Creative level design

I admit it; I totally love the ferris wheel set, and spend all my time on it :P

Nice people

Generally the people I've met on IMVU are all very nice and helpful. Nobody really seems mean or anything.