"With your permission, you give us more information about you, about your friends, and we can improve the quality of our searches. We don't need you to type at all. We know where you are. We know where you've been. We can more or less know what you're thinking about." [Google]
New products are even more invasive. Amazon's latest "Echo" technology, featuring "Alexa," an app which allows the Echo to interpret your commands via microphone and talk back to you, is essentially a highly sensitive listening device (with digital speech interpretation) which people are paying good money for and willingly centralizing in their homes. This is so Orwellian it is astonishing.
http://www.zerohedge.com/news/2017-01-11/how-globalists-predict-your-behavior