Hopefully this won’t be like the InPrivate Filtering feature in IE8, which is opt-in on a per-session basis (and thus essentially useless to most people). Check this IE blog post for more details on the new Tracking Protection capabilities planned for IE9.
Microsoft Corp. is adding features to its Internet Explorer browser that let users create “Do Not Call’’ lists for the Internet.
Internet Explorer 9 will bar listed websites from tracking what users do on the Web, said Dean Hachamovitch, a Microsoft vice president. The controls also limit what content blocked sites can display to users.