I've been enjoying a little series on D&D sourcebooks from the SA website entitled WTF, D&D.
Enjoy!
Monster Manual, pt 1
http://www.somethingawful.com/d/news/wtf-monster-manual.php
Monster Manual, pt 2
http://www.somethingawful.com/d/news/monster-manual-wtf.php
Deities and Demigods
http://www.somethingawful.com/d/news/wtf-deities-demigods.php
The Tomb of Horrors
http://www.somethingawful.com/d/news/wtf-tomb-horrors.php
Rifts
http://www.somethingawful.com/d/news/wtf-dnd-rifts.php
Monster Manual 2, pt 1
http://www.somethingawful.com/d/news/wtf-dnd-modron.php
Monster Manual 2, pt 2
http://www.somethingawful.com/d/news/monster-manual-two.php