This Constant Contact wordpress plug-in adds a constant contact widget signup form to your website sidebar.
This is my first version.
Tested upto 3.0 with new live demo.
Tested upto 3.1.2.
Only admin user(or user have admin permission) can see this plugin admin user.
Plugin premium version available with email option.
Tested upto 3.4
New demo link, http://www.gopiplus.com
Tested upto 3.5