With the help of this great WordPress (WP) plugin, you can create a membership site within a membership site. The List Hook WordPress Plugin works through the Aweber or GetResponse API (Application Programming Interface) to check & verify that your members are on your mailing list. If not, they can’t access any page you stipulate in your membership website. This is the complete subscriber retention strategy. Designed for Aweber & Get Response, this plugin works with any WordPress membership website plugin.