About Tracking Protection Lists
Tracking Protection Lists (TPLs) can help enhance your privacy by preventing the websites you visit from automatically sending details about your visit to other content providers. When you install a TPL, a Do Not Track signal will be sent to websites and content providers not already blocked by the TPL. Microsoft does not author, maintain or control these lists. Before you install a TPL, use this guide to learn more about Do Not Track, what a TPL does and who created these lists. Commonly asked questions about Tracking Protection.
Managing Tracking Protection Lists
Click on the Internet Explorer 9 Tools button, click Safety, and select Tracking Protection Lists to access the lists you have installed.
To enable or disable a TPL simply click on the list and choose one of the options at the bottom of the window.
When Tracking Protection is filtering content on a website, a blue Do Not Track icon will appear in the address bar. Click on that icon to turn off Tracking Protection for the current website.
IE's built-in Tracking Protection feature does ad blocking. No add-on needed.
You'll need to subscribe to a Tracking Protection List. Your choices range from bad to good.
galacticninja once pointed out that some Tracking Protection Lists block tracking content only, not just ads. But plenty of lists deal with ads:
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TRUSTe: bad. TRUSTe is a for-profit corporation; its list overrides other lists and allows thousands of sources to bring in ads. Do not subscribe.
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Abine: mediocre. Abine's lists have good star ratings there, but they don't block all ads. A line-count tool shows me that the "Abine Standard" list contains only a few hundred rules.
EasyList Standard: good. This list has a lower star rating there, but is far better. It includes more than 8,000 rules. I suspect that users rated it only three stars there because it was designed only for ad blocking, not for privacy protection.
You can add the protection from the following link:
http://www.iegallery.com/en-us/trackingprotectionlists
You can find more IE9 tracking lists here:
http://ie.microsoft.com/testdrive/Browser/TrackingProtectionLists/
And check out the rest of the Internet Explorer 9 add-ons here:
http://www.iegallery.com/PinnedSites
Source: http://superuser.com/questions/257792/how-can-i-block-ads-in-internet-explorer
