We encourage you to update your listing regularly. Just visit your "My Account" page. In the right column, under "My Listings," you'll find a list of your directory listings.
Each one has a "Manage" link button that will open the "Listing Summary" page for that listing, there you can click on the "Edit Listing" button near the top, and proceed to edit your listing.
Visit When Should I Update My Listing? FAQ for more details
Note: Your updated listing will be subject to review by our content team.