I was reading through my favorite blogs this weekend and I came across these websites that I thought you might find interesting and want to add to you library of tools.
http://www.periodicvideos.com/ This site is amazing.
Middle School and
http://www.storylineonline.net/ The stars read stores online to students. Streaming video.
Smart board Resources
Just for fun
http://www.nbcolympics.com/science-of-the-games/index.html Olympic Science