4 plugins tagged with opt-in-form
Simply add Aweber forms to all posts/pages at bottom or top. Alternatively use a shortcode to add forms to your content.
Moptin is an Email Subscription Optin Form WordPress Plugin.
OptinAble — The ultimate free WordPress plugin for collecting email subscribers with beautiful popups, stickybars, slide-ins, and embed forms.
Popup builder for WordPress: popups, slide-ins, banners and bars with email opt-in forms, targeting, triggers, 47 templates and a cookie banner.