I don't know if you've had a chance to see the Periodic Table printmaking project? It was featured on etsy's Storque last week and I'm very excited and impressed by it. A very good idea.
Also pretty cool if your computer can handle flash is the Periodic Table of Wines over at winesofsubstance.com Both of these sites should involve lots of clicking. Some of the wines on the periodic table feature a PDF for taking notes about the wines. Sometimes packaging is enough for me. But the wine's not bad either. It's a local winery out of Walla Wallla.
Because good things come in threes (right?) check out Anandi's Geek Magnets if you're still in a scientific mood.