1. The document provides instructions for mapping a custom domain purchased from Network Solutions to a Ning social network site.
2. It involves logging into your Network Solutions account, accessing the domain management page, and using the advanced DNS manager to delete the existing A record for www and add a new host alias record that refers the www subdomain to the Ning network address.
3. It may take up to 48 hours for the domain name servers to propagate the changes so that the custom domain maps to the Ning site as intended.