Mailblast - Email marketing on a budget using Amazon SES
Awesome Mails - Awesome Mails creates beautiful image map emails, featuring an easy to use drag-and-drop editor...
GetResponse - Email marketing from GetResponse. Send email newsletters, campaigns, online surveys and follow-up autoresponders. Simple, easy interface. FREE sign up.
Marble Responsive Email Designer - Marble helps you design beautiful and mobile-friendly emails and newsletters.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Mizmoz - Easy-to-use, state of the art, email service provider dedicated to support growing businesses.