 MailChimp is an email marketing service with over 300,000 users. They provide an easy way for users to send email newsletters, manage subscriber lists, and track campaign performance. MailChimp takes a variety of basic and advanced features (like templates, list segmentation, a/b testing, geo-targeting and ROI tracking) and makes them accessible to the everyday user through automation and a competitive price point. see moreMailChimp is an email marketing service with over 300,000 users. They provide an easy way for users to send email newsletters, manage subscriber lists, and track campaign performance. MailChimp takes a variety of basic and advanced features (like templates, list segmentation, a/b testing, geo-targeting and ROI tracking) and makes them accessible to the everyday user through automation and a competitive price point.
Their platform uses an open API and encourages other systems and web applications to integrate with its email-marketing engine. Currently they offer integrations with systems such as PayPal, Google Analytics, Shopify, Magento, Salesforce and several others. see less | 
