Footer Slideup Form adds an GetResponse Opt-In form into the footer where user's can subscribe to your List.
Footer Slideup Form is one of the best ways to ask your user to subscribe to your list without any interruption or blocking and this plugin does exactly that. It adds GetResponse subscribe form in the footer of your WordPress blog. GetResponse (Aff Link) is an autoresponder which allows you to send series of email message to subscribers.
This plugin is only for GetResponse form and for AWeber please use AWeber Footer SlideUp form plugin.