Microsoft Tag lets you seamlessly connect almost anything in the real world to interactive experiences from your mobile phone. Consumers scan Tags to engage at the maximum point of impact by using the device that is central to their daily lives: the mobile phone.Cross-Media: Print, online, TV, billboards, point-of-sale—the range of places where businesses can use a Tag is almost infinite. With Tag it is easy to integrate your offline and online campaigns across web, mobile and print mediaEngage: Simple, intuitive, and interactive Tag enables immediate response and deeper engagement from your customers, providing a unique vehicle to influence in-the-moment behavior, drive deeper engagement with your brand, and turn interest into action.Report & Measure: With built-in tracking, metrics and analysis tools, Tag gives companies access to data that can help them make effective decisions about their marketing expenditures.Agile: Tag’s dynamic technology lets businesses change campaigns at any time, enabling companies to react and evolve in real-time and deliver the most powerful outcomes.

I am the Community Manager for Tag,  this is a little video on how Tag can be used in many different scenarios.