Ahhhh this is always a fun one...
here are a few links to get this thread started...
http://www.americanbaby.com/ab/story.jhtml?storyid=/templatedata/ab/story/data/1364.xml
http://www.americanpregnancy.org/pregnancyhealth/foodstoavoid.html
http://www.americanpregnancy.org/pregnancycomplications/stdstiduringpregnancy.html
http://pregnancy.about.com/cs/nutritioninpregn/a/aaabavoidfood.htm
http://www.webmd.com/solutions/infant-nutrition/foods-to-avoid
http://www.medicinenet.com/pregnancy_your_guide_to_eating_right/page4.htm