Ken Larsen's web site - Examples of how QR codes can be used in political campaigns
Scan a QR code with a Smartphone, and you're taken to that candidate's website.
In this
case, http://www.jamezettaforcommissioner.org/
The above sign is Jamezetta's campaign sign. I created and affixed the QR code to show Jamezetta how QR codes work, but she never used them on her actual signs. She had already printed her signs before I reached out to her.