Good news! Publishers Weekly has just announced they will begin reviewing self-published books in a quarterly supplement called PW Select. The first one is scheduled to appear in December. From the article:
Titles submitted for our first supplement must have been published in 2010 and have a valid ISBN. We will not accept manuscripts or e-books (this time). Only final bound galleys or finished books will be accepted. Books cannot be returned; once finished the copies are donated to Housing Works Thrift Shop, a worthy local charity.
Please, please send your book in a bio-sensitive package (i.e., no bubble wrap or plastic envelopes). Also, please use packaging appropriate to the book you are submitting: no boxes full of packing peanuts or paper stuffing. We recommend reusable and recycled paper envelopes. An acknowledgment of the book’s arrival will be issued via e-mail upon receipt.
Publishers Weekly is the place to send any pitches or queries. You’ll want to be sure to read the full article (click the link in my post), and realize that there is a fee associated with registering your title for consideration. Good luck!