When I visit Sydney Morning Herald's site, it tells me how many articles I've read this month. My question is: how do they know?!? Cookies? - no, I clear them regularly. IP address? No, mine is not static, it changes every time I log in (which is often - I tend not to stay connected unless I am actually using the connection). Flash 'super cookies'? Nope - I've cleared them too. Yet, somehow, they still track my visits. HOW???