Periodic Table of Videos
Recently I've been watching some interesting videos describing the common/interesting properties of many of the elements. Normally I wouldn't be so inclined as to look at them on a whim but this great site explains each element in a video and gives you some insight into common properties, uses, and molecular structure of each element or compound.
You can find the videos here http://www.periodicvideos.com/index.htm the site has been recognized by Science Magazine and won the Science Prize for Online Resources in Education (SPORE) to which I believe is well deserved.
Definitely something people interested in science or more specifically chemistry should check out