I have a site that generates around $100 a week. This is not really good because I believe it can generate much more. So I've decided to change the business model and give the product for free but charge only for premium service.
My problem is that I have many customers that already bought the product and they will not be happy to find out that it is now free. What should I do?
Create a bonus, something that's truly valuable and you could sell for the same price they already paid, maybe more... and give it away to them for free. Tell them why... and then ask them to spread the word... (tell a friend form).
Or start a new site under a different name and become your own competitor.