Since I own my own domain (guess which one?), I have an infinite number of email addresses I can use. So, when I create an account on a new website, I can give each one a customized address that I can track to know who had which address. Then, if they sell the address to spammers, I can know exactly who did it. Thus far, I’ve identified Buy.com and Emusic.com and Podpickle.com for doing so, and, today, Equifax.com joins the list.
So, if you’re considering using any of those websites, be ready to give them a throw-away email address that you can walk away from when they sell it. I’ve added that address to an email filter so it goes directly to the bit-bucket, and I will never seen anything sent to that address again.