Here are two excellent sites for Christian readers:

1. 1. http://Redeemedreader.com whose mission statement reads: “Our goal…is to shine a gospel light on children’s literature so that Christian parents, educators, and the children they nurture may read in a more redeemed and redeeming way.”
2. 2.  http://www.bookreporter.com/faithfulreader - This site features Christian book reviews, author talks, book giveaways, and much more.