If you no longer want to receive Survey Notifications from us, you can unsubscribe in two ways. From the "My Account / My Profile" link or directly from the survey mailing in the footer under "Manage Emails"
My Account/My Profile:
Press "My Account" and then "My Profile". At the bottom of the page select "Unsubscribed" under Survey Notification and then press the "Save Changes" button.
Survey Mailing footer:
In the footer of the survey mailed to you, press "Manage Emails" and then follow the steps above.