So the big Web companies will include do-not-track buttons in their browsers - sounds good,...

|By:, SA News Editor

So the big Web companies will include do-not-track buttons in their browsers - sounds good, right? Well, blocking data tracking will make it harder for ad-supported companies to sell ads, and selling ads is what makes a lot of internet content free. "There's nothing sinister about third-party ad tracking cookies," Jeff Jarvis writes - and it's puny vs. the info banks and credit card companies know about you.