The most advanced protection against sploggers and spam users registration, is fully WordPress, WordPress MU, BuddyPress and bbPress 2.0 compatible
The Aweber Form Plugin by ContactUs.com creates newsletter signup forms for Aweber users to grow their email newsletter list.
Add your MailerMailer signup form to your WordPress site. Allow site visitors to easily subscribe to your email list.
The Mailinglijst plugin allows you to add a signup form for your Mailinglijst.
This plugin allows you to insert a checkbox at the end of your comment forms so your viewers can double optin to a MailChimp list of your choosing.
Simple email marketing subscribers collector. If you know how to email, you know how to CakeMail.
The MailChimp plugin allows you to quickly and easily add a signup form for your MailChimp list.
Embed ReachMail subscription forms to your WordPress powered website.
The Campayn plugin makes it easy to add subscribe forms for your Campayn lists, or subscribe your commenters to a list.
WP Network Multisite "mu-plugin" for user activation key removal or approval.
Connects WordPress to Salsa for embedding events, sign up forms, and reports.
Integrate Mad Mimi with your WordPress website: includes signup form widgets and automatically adding registered users to lists.
Плагин подписывает email комментатора в выбранный лист в сервисе MailChimp.
The VerticalResponse Form by ContactUs.com is a plugin to create and publish dynamic newsletter signup form experiences used by VerticalResponse subsc
Add an iContact newsletter signup form to your sidebar or content and easily update how the form looks.
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