"Vivaty Scenes is launching today in public beta on AIM and in Facebook. These are realistic rooms that act as virtual personal environments—a 3D version of your personal page. You can set the theme, decorate with furniture and other virtual goods, and chat with the avatars of friends who enter your room (they need to install the app as well). The best part is that you can bring in photos from Flickr and Facebook, or videos from YouTube and display them on screens in your room. You can play MP3 songs as well.
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That could be a game-changer if Vivaty’s platform takes off. It is deep linking into the 3D Web. Since they have regular URLs, each 3D scene can be linked to from the regular Web. Even objects within each room can each have their own URL.
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While Vivaty is hosting all the rooms to begin with, its technology is architected to become distributed, like the Web itself. Vivaty Scenes are created using standard Javascript and PHP, and can be hosted on standard Web servers. McCurdy doesn’t want to create another walled garden. He wants to bring the Web into the 3D world."
OMGz you mean sound longer than 10 seconds... and, umm, isn't mp3s pirated music or something??
More:
Vivaty Brings The 3D Web to Your Browser, Starting With AIM and Facebook
The competition is heating up. Makes Lively and Wonderland look silly and better integration than
SL 
http://www.vivaty.com/