Amazon Used to provide the email address of the customers of yours, hence you could follow up with them and send them thank you notes and such, but they've changed that a while ago. Continue reading to learn the way you are able to still connect with your customers.
They might have released the restrictions to the communication system of theirs so as to maintain a tighter reign on customer support quality, and perhaps to keep leakage of the net profits of theirs. In either case, now there is no longer a method to get in touch with the customers of yours directly.
Or is there? In fact, there are 2 ways:

1) Thank You gifts or Notes
You could have some sort of "special" of gift in the package of yours, maybe a bookmark that doubles as a coupon, or perhaps a gift of some kind, for example for an electronic guide. Should you go for the latter, you may be better to provide them a choice -- or perhaps make totally sure you have a range of offers and send them one that would go perfectly with their order.
In order to claim it, they would then have click here to buy The Wholesale Formula [visit our website] email you, as well as bingo -- you will have their email address.
if all you are looking for is follow up, there is absolutely nothing wrong with writing again, thanking them for their good comments (saying they made your day!), as well as asking them if they would perhaps be happy to provide you with good comments as well as include similar comments.

I once received an enthusiastic phone call from somebody who said she was really enthusiastic about having picked up the book, therefore quickly and in such high quality, and that she would leave feedback. But, sadly, she never ever did.