Facebook re leas new add option that you've to definitely run into targeted ads,  as example, you need be looking at a product on one site, we have to seen situation where a YouTube video will play ads for the site you opened in another tab ..now lets take a vision about how it works..,lets 

How it works

Most websites get their ads from ad networks. Each ad network puts a bit of code called a "cookie" on your computer. When you visit one of the member sites, the site recognizes the cookie and lets the ad network know where you are so it can send you personalized ads.

Even worse, the member sites share what you do on their sites to build a database of what you like and don't like, or even specific items you looked at. This makes it easier for the ad network to send you ads that it thinks you'll click on.

Where it really gets scary is when you add Facebook into the ad network. Most websites have to figure out what you're thinking based on what you do. On Facebook, you tell it exactly what you're thinking.

Every "like," news story click, status update and photo caption you put in Facebook is a bit of information that advertisers would love to add to your file. And you'd be surprised how much money it can make them.

In 2013, online tracking and targeted advertising practice helped Internet advertisers rake in a staggering $42.8 billion. And for 2014, that climbed to $49.45 billion, or a 15% jump.

Naturally, you don't see a penny of it. You're just concerned with what happens to your information if a shady employee or hacker gets a hold of it. Or you just don't like the idea of being tracked.

How to stop the tracking

I've told you in the past about how to opt ou

t of Facebook's tracking and targeted ads though the ad network it's a part of, the Digital Advertising Alliance. However, Facebook has now added this feature to its own settings.

To opt out of Facebook showing you targeted ads from other sites, or from seeing Facebook's ads on other sites, open your Facebook page and click the upside-down triangle in the upper right corner. Select "Settings" and then in the left-hand column select "Ads."

You'll see the new "Ads based on my use of websites and apps" setting. Click the "Edit" link, and then click the "Choose Setting" button and select "Off." You only have to do this once and it will apply to every gadget where you sign in with the same Facebook username.

Now, this won't stop Facebook from showing you targeted ads based on information it collects about you. However, it won't get any of your information from its partners, and it shouldn't send any of your information to advertisers.

While you're in the ad settings area, you'll also want to change "Ads with my social actions" to "No one" so Facebook can't use your name in advertising. You can also change your preferences to control what kind of ads Facebook shows you.

   

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