i think the difference is that for example vevo has ads supporting the music you listen/watch through the youtube channel. As of now there's not the ad alterna

i think the difference is that for example vevo has ads supporting the music you listen/watch through the youtube channel. As of now there's not the ad alternative through google music. as someone else said they did announce youtube integration through artists hub as well as linking to purchasing the track from youtube. http://music.google.com/artists/ http://music.google.com/artists/ - at the bottom is screenshot of what it will be like.