Websites like Hulu and MSN found to be using “supercookies”

What's tougher than a cookie. Why, a supercookie of course. Don't be surprised if you've never heard the term before - even though it's something most of us encounter on a daily basis, it's just that we don't know it. The Wall Street Journal has recently reported that a large number of web services such as Hulu and MSN have been discovered to be using supercookies.
In case you didn't know, cookies are tiny files that are stored on a user's computer so that when they visit a website, so that it knows whether they've been there before, whether they've been logged in or not (so they don't have to log in again) and to remember user preferences.

Ubergizmo, Websites like Hulu and MSN found to be using “supercookies”