Some more links

The ultimate exposure computer (for muuranker and others who want to learn more about photography)
http://www.fredparker.com/ultexp1.htm

The Elements for iPad (someone should do an app for the periodic table of Elvish names)
http://www.youtube.com/watch?v=uPUWbVLzVZI&feature=player_embedded

Klein hats and moebius scarves - just what you need to keep warm this winter
http://www.kleinbottle.com/klein_bottle_hats.htm#HatandScarf

A clever optical illusion
http://www.scientificamerican.com/media/inline/blog/Image/CurveBallShapiroIC2009.swf

How to make porridge in a pumpkin
http://www.cookingwithmykid.com/recipes/baked-pumpkin-oatmeal/

Confessions of a Used-Book Salesman
http://www.slate.com/id/2268000