RE: Reviews - should you contact/thank reviewers?
I will prefix this next statement with "I would say this, wouldn't I?"... but it's true. I know at least three of the people who posted 4/5* reviews on Amazon for my book, Dark Tidings, but I believe they are all genuine reviews from friends who liked the book and wanted to help me. Having said that, if a friend had hated the book (and I don't know of any ), I'd have expected them to tell me privately and not post a bad review.