WebinarNinja - Beautiful webinars. No worries.
Bandcamp - Discover amazing music and directly support the artists who make it.
Recast - Listen to radio stations' playlists with Rdio or Spotify
SoundCloud - Enjoy music & follow favourite artists
STAGE TEN - Social broadcasting made simple
Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.