One from Crypted Nets and one from IT World.
I post book reviews mostly so I can find them again years from now. When the time comes to do a third edition, I need quotes like “I doubt that a better book on OpenBSD could be written” for the cover and marketing materials.
And another quite nice at xorl blog:
http://xorl.wordpress.com/2013/05/18/book-absolute-openbsd-2nd-edition/
Thanks, Pablo, I missed that one.