PantoGraph supports Aweber Newsletter Subscription. To use Aweber with PantoGraph, you need to have aweber account and get your List ID from there. Now, visit your WP-Admin > Appearance > Theme-options > Aweber Newsletter page and input your list ID in the ‘Aweber List ID’ field. There are couple of other optional fields which you can use to determine where the subscribers will be redirected after subscribing.
Now, you can place the PantoGraph Subscription widget (which is available in the ‘Appearance > Widgets‘ page) on your website’s pages, sidebars or on the footer.