BNFW Custom Fields Add-On
Custom fields shortcodes and triggers for use in Better Notifications for WordPress.
Better Notifications for WordPress
WP Email Capture Premium
WP Email Capture is one of the oldest and most respected Email Capture plugin for WordPress.
Winwar Media
Postmatic Premium
Postmatic is all about engagement: Build lists, send posts by email, and foster great conversations with email-based commenting.
Postmatic
WordPress Social Invitations
Unique of it's kind, let you connect to your social networks and choose which friends to invite
WP Timersys
Postie Plugin
Postie allows you to create a post by simply sending an email.
PostiePlugin