Music Nation is an online music community. Create an artist profile page, upload videos, MP3s, photos, slide shows, and anything else you like. Get the attention of the fans, and, well, this platform will help you get the attention of the world.
Streampad is an online audio player that allows you to play music from your computer, music from any other web page or search for music all over the web and listen to it inside the platform. It is currently being developed by Dan Kantor who was most recently a developer at del.icio.us and has spent time at Yahoo! and Microsoft.