To renew your domain name registrations:
Step 1:
Log in to the DomainNameCom.com Account Manager.
Step 2:
Select My Renewals from either the Customer Info & More menu or the Customer Info & More list.
Step 3:
Click the link, To view renewing Domain names click here. in the Manage Products and Services pane on the right.
Step 4:
Select a domain name and click Renew Domains.
Step 5:
Indicate if changes apply to only the Single Domain, Selected Domains, or All Eligible Domains.
Step 6:
Choose the length of time you wish to renew the domain name(s) for.
Step 7:
If the domain is currently public, choose if you would it to remain public (standard) or if you would like to make it a private registration.
Step 8:
If you choose to make the domain registration private you may enter a current Domains By Proxy account user ID and password or create a new Domains By Proxy account. Then, read and accept the Domains By Proxy Agreement.
Step 9:
Click Proceed to Checkout and complete your purchase.
More about registering and managing domain names ...