Super cookies? Super cookies! We all know what internet cookies are by now, right? Little packets of data that a website stores on your computer when you visit so that when you return, they remember you. The Wall Street Journal says that the cookie race just got significantly souped up. Super cookies are apparently being deployed by major sites like Hulu and MSN. They're like cookies except virtually impossible for your computer to detect and even if you delete cookies, these stick around. And it's legal.
By the way, a news search on "Super Cookies", also gets you this.