"Amazonia insists that reviewers should have purchased a copy of the book through their account and that 24 hours should have elapsed since the purchase."
Thanks for that, EB. News to me, I must say. I shall check it out. I have posted reviews on Amazon before, for books that I haven't purchased from Amazon. Maybe there has been a change of policy. The people at Amazon use all the tricks in the book to grab more sales and to marginalise / kill off all the bookselling competition. As a small publisher I sell a fair number of books through Amazon -- one has to, because of their sheer size and influence. But the margins are minimal. I probably lose money on every Amazon sale, because of the vast discounts that they insist on and because I have to carry all the postage costs for delivering small quantities ordered -- typically just one or 2 copies at a time..
Anyway, I'll honour my pledge on the free books (quota now used up for this month) and will trust that you folks will post honest reviews somewhere or other!!