MailChimp supports more than 900,000 subscribers worldwide, sending 1.75 billion emails per month. The MailChimp platform improves the user experience by providing seamless, yet powerful email marketing and publishing features that are easy and affordable enough for a small business to get started, but powerful enough for a large company looking for an enterprise level solution. MailChimp-s platform provides an open API used by more than 100,000 subscribers. MailChimp integrates with many third party applications including Facebook, Twitter, Eventbrite, SurveyGizmo, Salesforce, WordPress, Magento, Joomla, Drupal and Google Analytics. And best of all, prices start at free.