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Comment by Andy Voelkle "AxeMan" on May 26, 2010 at 1:56

This is the latest thing. Google will point you to some fascinating info.

Comment by Andy Voelkle "AxeMan" on May 24, 2010 at 12:15

This one says "andy@voelkle.net" my permanent private email, which any of you guys may use to contact me.

Comment by Andy Voelkle "AxeMan" on May 24, 2010 at 12:13

This is a "QR" or Quick Recognition code block. They are used extensively in Asia, where the image can be snapped with a cell phone, and the data decoded and entered into the address book. Two phones can simultaneously exchange information in a "QR-69 style move". The QR code block has heavy error correction built in for a flawless recognition even if many little blocks are added or missing. You will notice a similar technology on postal envelopes and premium delivery service labels.