One added security measure is to use address tags that are accepted by email services like Gmail and Yahoo. Depending on what email service you use, you can use a +, -, or = after the local part of your email address to then add an email address tag. This will allow you to have a different email on record with various organizations, while still receiving notifications to the same address.
Here are some examples for some of our favorite companies: Gawker:yourname+gawker@gmail.com Sony: yourname+ps3@gmail.com Email promotions: yourname+disneyemail@gmail.com Expedia: yourname+expedia@gmail.com
Read more about email address tags. http://en.wikipedia.org/wiki/Email_address#Address_tags
