Printable periodic table: QR-coded
Attached find a printable QR-coded periodic table with links to online periodic table data. QR codes are 2-dimensional bar codes readable by, for instance, some Apps on iPhones and others.
Print on a big a piece of paper as possible, otherwise your QR reader may pick up an element you didn't intend.
1.1: 15 September 2011
1.0: 17 July 2011