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Bed Bugs 
Bed bugs are increasingly becoming a problem within residences of all kinds, including homes, apartments, hotels, cruise ships, dormitories and shelters. We have drafted this document to provide basic information about the biology and health signific...
http://www.hsph.harvard.edu/bedbugs/
first added by bonniemorrison, last updated 6 months 30 days ago
by 2 users
Skytopia : Greatest Optical Illusions Pictures.
Even though a few of the optical illusions here are already popular, I have enhanced many of them by animating them in some way - rotating, squashing, switching, sliding - you name it. Also, many of the optical illusions on display I've actually made...
http://www.skytopia.com/project/illusion/illusion.html
