I'd like to plug my own favorite here: https://queup.net https://queup.net (former dubtrack.fm) let's you create your own playlists from YouTube and soundcloud,

I'd like to plug my own favorite here: https://queup.net https://queup.net (former dubtrack.fm) let's you create your own playlists from YouTube and soundcloud, then you can make your own channel, people can join and you take turns playing what you put in your music queue.