www.WebElements.com - an online periodic table, but not just any online periodic table, as this one has funny cartoons with some of the elements! Two that made me laugh! (yes, I am as geeky as you think I am)
www.BlackMask.com - FREE books online! All pre
http://www.adobe.com/epaper/ebooks/ebookmall/main.html - Another site that tells you where to find free books!
www.ScienceNews.org - They definitely have some presuppositions about certain topics (for example, they tend to side with large corporation food industry) so you have to read carefully to see where they are basing their articles on opinion rather than truth, but somewhat interesting nonetheless.
www.Boundless.org - Relevant articles about culture & life
www.NashBar.com - a very good place to buy bike things
www.Oriland.com - fun origami site