Yes, the internet is very smart these days. It tracks our preferences and shows us what we have viewed earlier. They keep a tab on the sites or advertisements we see and send us promotional information through e-mails. This is their business and everybody is following the same thing. As Dr Rao has mentioned in his reply @ # 663540, that Google Maps keep a track on our location, we can simply turn off the location when not necessary to avoid this.
While many of you may have noticed that during the installation of new apps in our smart devices it asks for certain permissions like Contacts, Messages, Camera, Location etc and from the settings of the devices we can withdraw some of the permissions too. Mr Venkiteswaran in his reply has given some good points to remember and we must follow them and use the utmost precaution while sharing our personal details. Never share your personal contact number/mobile phone number in any social networking sites, otherwise, you may be bombarded with many spam messages.
"Life is easier when you enjoy what you do"