Online Music Player with Synchronous Playlist Listening

Spool.fm is an online music player and playlist editor with a great feature for music lovers to listen to playlists of songs synchronously. To find tracks there is a search engine. Editing playlists is facilitated to everyone, non members and of course to members. To members there is the unique feature to create playlists, that may become listened synchronously by sharing links. Editing playlists is most simple by drag and drop of songs. There are also rating and voting tools and introductions to top rated tracks. Unfortunately I have found that the playlist editor does not work with every browser. It works fine with IE but not with Firefox.

For video viewing a similar feature is available by online video show rooms like SeeToo or Streams by YouTube.