If you have one NGIN account and want to have emails that are sent from the website to go to more than one email address, here's how you add one or more secondary email addresses:

http://support.ngin.com/questions.php?questionid=69


If you have multiple NGIN accounts (such as one per parent) and want to make sure both accounts and email addresses get emails that are sent from the website, here's how you can link multiple accounts:

http://support.ngin.com/questions.php?questionid=246