Hi taiarain, Yes I am the owner of ArrowAudioBooks.com
No it isn't hard to get set up as a provider, as a matter of fact we do have an affiliate program. If you click on "Affiliates" you can get more info. If you have your own website, we can ad pages of content (audiobooks). All customer service and payments through our network, which means less work and time you need to spend.
An excellent way to monetize an existing site with relevent content, which the search engines love. Affiliate back room, to track sales etc.
Also, a site can be created, in a particular niche or general interest.
Affiliate commissions start at 10%, paid monthly.
Arrow, Have YOU heard This Book?