Quick Response Codes! I think they are also called 'Semapedia Tags'. They are those two-dimensional, square bar codes, with lots of tiny boxes, that can be read by most smart phones. You put them on physical things, like business cards, posters, t-shirts, books, stickers (to stick on things!), billboards, etc.
The smart phone user scans the code and POOF!!! There are a number of things that can happen! They can…Continue