Moonplayer is a free streaming video site that endlessly plays music by your favourite artists using YouTube content. The service takes a Pandora-like approach to playlists, as it only allows the user to choose the artists, not the songs. Unlike Pandora, however, MoonPlayer only plays music by artists you add to the playlist — and it never stops playing unless you pause it.
Once you choose an artist, other similar artists are presented, and adding them is one-click easy. Playlists can be shared via URL at any time, and since there's no account to log into, that same URL can be bookmarked so you can always return to your music.