Video from Drupal South Meetup from October meetup talking about working with Mailchimp email services, and Drupal integration. Remember Mailchimp is a all in one integrated marketing platform for small organization, to help them grow on their own terms.
With MailChimp Automate your marketing, organizations can add a personal touch with very little effort, through automated messages that reach their customers at exactly the right moments. Link below to the presentation done by Vladimir Roudakov, from Tomato Elephant Studio.