You can learn about ExactTarget’s practices by going to http://www.exacttarget.com/privacy-policy.</p> <p> <strong>Is Personal Information Collected From Children?</strong> </p> <p>Unless otherwise disclosed during collection and with parent or guardian consent (for instance, in some of the educational areas on our Sites), Sierra Club does not knowingly collect personal identifiable information from children under 13 years of age. If you are under 13 years of age you should not provide personally identifiable information to the Sierra Club without providing us with consent from your parents.