An article about the Tracking Protection Lists available in IE9 for those of you who like it. Short version: one of these things is crap.
I found this one balanced and very informative, Savyg:
"Each browser’s approach to Do-Not-Track has strengths, weaknesses and dependencies. An ideal approach could combine the best attributes of the Microsoft and Firefox approaches:
A binary, global do-not-track signal which must be respected as to activities commonly defined as “tracking.” This provides simplicity and durability for the broadest set of web users, provided that “tracking” can be appropriately defined.
Settings to control tracking interactions directly in the browser. This provides certainty that choices are honored, with less dependency on server-side compliance.
The ability for any selection to be made in an web interaction, rather than within the browser setting menus. This makes choices findable in a context where users can best understand their purpose and effect.
Choices to selectively allow or disallow tracking at the company or website level, as a complement to global settings. This provides versatile choices to afford web users the greatest benefit from their online profile and encourages value exchange with web providers.
Independent audits of tracking practices which cannot be externally verified. This allows marketers to continue to use non-behavioral data without compromising certainty for consumers."
If IE9 was as much of an improvement over older vers as Win7 is over any other OS created by MS then it would be kicking some serious arse.