I’ve recently met Marius and Mary from www.bookhuntersblog.com. When I asked them what they do, they replied:

We offer several promotional services, including reviews. Our reviews are always free and objective - the only thing we charge for is the submission to many different sites, blogs, and groups. But it is not required and they can stay 100% free (with limited exposure).

You might want to look at their sites and get in contact.

BookHuntersBlog.com
AllTheseBooks.com
MySpace.com/Book_Hunters