Add Mailchimp signup process to WordPress registration form
Manage and send your MailChimp campaigns just right from your blog.
Adds a widget that allows your users to sign up for your MailChimp mailing list.
Seamlessly integrates the WordPress registration and comment forms with MailChimp, Constant Contact, and SalesForce.com
ViperBar adds an attractive bar to your site header, which you can use to increase blog or newsletter subscribers.
Adds MailChimp integration to Simple CRM
Create and send MailChimp campaigns by selecting WordPress posts directly from the WordPress administrator backend.
Adds MailChimp Subscribe Widget to Simple CRM
The goal of the plug-in is to help a WordPress Site Administrator integrate a MailChimp mailing list into the WordPress site.
MailChimp integration framework and admin interface as well as WebHook listener. Requires PHP5.