I have started http://onlineqrlab.com with no clear idea in my mind (what it will do or how to monetize). I built a nice generator and I'm now improving more the interface. I would be interested in QrCode ideas as I don't have any. Does anyone think of a small, 1/2 months feasible QrCode project that can be monetized somehow (SaaS like). I'm mainly doing this for learning purposes, so I don't bother if it really work…
Then provide as a service to people employing street teams, guerilla marketing, etc.