When you visit some websites like The New York Times, have you ever noticed the ads displayed on their website? Those ads are not fixed on a web page. Actually, the moment when you open the site, there is actually blank.
The website provider knows you are browsing this page, then he will collect all your information, including your Internet address, the browser used, whether you've not seen or clicked on the same ad, the contents on the page that you are browsing. There are many other similar data sorted out ----in fact, all of this information can be used to make a fairly accurate depiction of this person's characteristics ---which are sent to their server.Based on this information,they infer what ads you might be interested in, then contact the agents of these ads, and tell them there is such a person at the moment looking at the page on an advertising field, and ask if they are willing to pay money to post their own ads. After advertising companies give the quotations, the website provider offers the highest ad paste it into the pages blank field.
It all happened in less than a few hundred milliseconds of the moment, and so when you saw the ad as a user is not aware of all this, you might think that advertising outset there.
Do you think this is fearful?
Can you image when people only see the custom world for his preference?
( If everyone only customizes his own vision, he will probably stop listening to others, loss tolerance and responsibility of discussion, just hide behind his own world headstrongly choose his favorite sound.)
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