Google's PDF viewer works for reading in the browser (scribd isn't working on this one): https://docs.google.com/viewer?embedded=true&url=http://www.valvesoftw

Google's PDF viewer works for reading in the browser (scribd isn't working on this one): https://docs.google.com/viewer?embedded=true&url=http://www.valvesoftware.com/publications/2009/ai_systems_of_l4d_mike_booth.pdf https://docs.google.com/viewer?embedded=true&url=http://...