Amazon is putting Alexa, the brains of Amazon Echo, in more places via the Tap and Echo Dot and now has formed a comprehensive smart home strategy that links up with e-commerce. The Echo was Amazon's surprise hit last year. Simply put, Echo has become the platform Amazon will use to jump further into the Internet of things. Echo looked like a flyer at first, but wound up being a control hub in many homes. Via developers and third party connections, the Echo served up information and connected to various home automation points.