How to ePublish content & get royalties?

I have access to a trove of recorded interviews of people significant in various realms of sport and entertainment. How would I go about locating sites where listings and samples could be made available and downloads for a fee transacted? All I'd care for in terms of remuneration is some sort of royalty per downloaded file and, if possible, some sort of consideration for the time a visitor spends on a site looking at my stuff (and the site's advertising).

Do I have to develop and host sucha site myself? (Please say "No!")

TIA