Hum,
That is a good list of repositories. But I do not think it is there, I do not know as it was back about 3 years ago. I would have to take hard look at the Google drive to see how much ads they might have and how it would work out. Probably not as seamless as SoundCloud, but then it might be better in the area you are talking about and maybe the ads. If I get a chance I will take a look. One thing is for sure, I think Google gives you a good amount of disk space to fill up.
LB