Not anonymously, I just don't link them on twitter because too many authors have twitter alerts and respond to every mention of their book ever. And I've heard horror stories from other reviewers. I get blurbed as the magazine and not as me because my name doesn't really have cachet with readers.

If you look at the "editorial reviews" listings on amazon pages, I pop up. I write for School Library Journal and then my name is at the end of the review.

Example: http://www.amazon.com/Byrd-Igloo-A-Polar-Adventure/dp/0545562767/ (www.amazon.com)