Please sign in to see what 
  the internet knows about 
  you.

Uh, actually, that's what I tell the internet about myself, for the most part.

It doesn't really impress me when I approach the internet and introduce myself by name. Of course the internet is going to remember me, if I permit my cookies and request parameters and IP address linger.

Much more interesting is when the internet makes my identity without my having volunteered anything.

Oh well.