Why pay for a book review when you can get them free? A free review or interview by a popular book blogger can get you a big audience. At our SLPA meeting on Amazon strategies last night, Bob Baker talked about asking top Amazon book reviewers to read your book and post a review. Find top reviewers by looking at a few other books in your genre. See which reviewers have the most likes. Click on their name and their profile with email address will pop up. See how many reviews they've posted. Voila. To answer SLPA member Liz's question, here's an article about how exactly to approach these folks:

Get Your Book Reviewed, by Christine Nolfi