The Internet Of Things represents a major departure in the history of the Internet, as connections move beyond computing devices, and begin to power billions of everyday devices, from parking meters to home thermostats. 

Estimates for Internet of Things or IoT market value are massive, since by definition the IoT will be a diffuse layer of devices, sensors, and computing power that overlays entire consumer, business-to-business, and government industries. The IoT will account for an increasingly huge number of connections: 1.9 billion devices today, and 9 billion by 2018. That year, it will be roughly equal to the number of smartphones, smart TVs, tablets, wearable computers, and PCs combined.

Read more: http://www.businessinsider.com/growth-in-the-internet-of-things-market-2014-1#ixzz2se3Yy5D0