You don't even have to do that. You can buy the e-book with distribution rights and make your own website to sell it, advertise on adwords, and away you go. My

You don't even have to do that. You can buy the e-book with distribution rights and make your own website to sell it, advertise on adwords, and away you go. My dad did it, he was getting an extra $100 a month with no time involvement at all. Once he got the paypal email his autoresponder would reply with the ebook. The only thing he had to do was once a week or once a month check his adwords account.