I recently signed up for a test drive of BidFuel.com (which I cancelled during the free period--it didn't look useful enough). Since then, I've started receiving spam at the email address I gave them--an email address I created uniquely for them. No one else has ever seen that email address. I recommend not signing up at this unethical website. If you really, really can't resist, use a throw-away email address. Shame on you, Bid Fuel!