Street art has increasingly met the market as its techniques like stencils, wheat pasting and murals have been adopted by corporations in advertising. Once seen as rebellious, street artists like Banksy and Shepard Fairey have seen their work promoted for commercial purposes. New technologies like projections, QR codes and augmented reality provide both street artists and companies novel ways of interacting with public spaces, sometimes blurring the lines between street art, promotion and advertising.