. After signing up at SpamGourmet
you simply use your newly created email address like this: PotentialSpammer.5.MySpamGourmetAddress@SpamGourmet.com. For example if your address is Joe and the site that wants your email address is Site.com then you give Site.com 'Site.5.Joe@SpamGourmet.com'. The '5' is how many emails you want to make it through to you before invalidating the address. Check 'em out.