Challies has a review of a book on Islam Challies Dot Com: The Politically Incorrect Guide To Islam and the Crusades

Here is an exerpt:

"May Allah rip out his spine from his back and split his brains in two, and then put them both back, and then do it over and over again. Amen." Such is the kind of "endorsement" garnered by The Politically Incorrect Guide to Islam and the Crusades. In this case, the endorsement was written by the Islamic web site, RevivingIslam.com. The author of this book, Robert Spencer, is the director of Jihad Watch and an Adjunct Fellow with the Free Congress Foundation. He has written several other books on the topic of Islam and, as per the brief biography within this title, "lives in a Secure, Undisclosed Location." That is no doubt a wise precaution for a man who writes books and articles warning against the dangers of Islam.

The author of this book maintains the two web sites Jihad Watch and Dhimmi Watch

These sites are worth taking a look...