VR provides a new level of immersion with a brand or product, absent other distractions. It’s no wonder, then, that marketers are scrambling to figure out how they can play in the space. In this nascent stage, there are no advertising standards or turnkey solutions for marketers. Even what constitutes VR isn’t necessarily agreed upon.
How do you measure the reach of VR? Unfortunately, there are currently no standards for measuring the reach of VR content. And at least right now, that isn’t a pressing concern. But that doesn’t mean there isn’t an audience.
http://adage.com/article/media/questions-answered-virtual-reality-augmented-reality/306482/