s2Member®—a powerful (free) membership plugin for WordPress®. Protect members only content with roles/capabilities.
Display highly profitable affiliate ads for Clickbank products. Simply drag *MCG: Affiiate Ads* widget on to your desired widget!
Not just an another Clickbank Storefront plugin - Designed to excel with the world's favorite eCommerce plugin - WooCommerce !
Bixt (through bixt.net service) replaces keywords or keyword phrases with affiliate links that you define per keyword.