WP Super Popup by Davide Pozza enables the WordPress website owner to create and manage modal and unblockable popups for your blog. It is proved that a modal and graphically attractive popup (like the one generated by this plugin) have an high conversion! For example you can use it for creating subscription forms or to promote your product in a viral way. The popup content can be retrieved from an external URL or directly edited inlide thanks to a WYSIWYG editor. The most powerful features of this plugin regards its competitors are the following:
Real WYSIWYG: The popup content is not affected by the stylesheets of your blog: what you edit is EXACTLY what you will see inside the popup
Live preview: you can directly test any update before saving the configuration options
Full compatibility with any caching plugin: the cookies are handled on the client side so the plugin is not affected by issues related to a caching system
Inclusion of external URL: you can create a popup which displays a content coming from an external URL
Plugin homepage and demo: http://www.n2h.it/wp-super-popup