While we understand that authors want their reviews posted to Amazon, the bookselling giant decided that reviews posted by professional review sites could not be posted under the "customer reviews" section of a book's page.
While Amazon won't allow us to post reviews, they do encourage authors to post portions of such reviews via their Author's Central account. Not sure how to do this? Here are the instructions:
Note that you won't be able to post the entire review as Author Central limits the length to a short "blurb."