E-mail Advertising

I just received an e-mail advertisement tied in to a popular website that I frequent. At the top of the e-mail it say that I received the ad because I signed up to receive such offers (I am fairly certain this isn't true, because I routinely make sure to uncheck those boxes that ask whether you wish to receive such offers). Additionally, I have, in the past, asked them to stop sending me these offers. The disclaimer at the top concludes with "such and such website never releases your information." Except to those special advertisers, apparently. Yuck, annoying.