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MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
GetResponse - Email marketing from GetResponse. Send email newsletters, campaigns, online surveys and follow-up autoresponders. Simple, easy interface. FREE sign up.
BizConnector - BizConnector offers marketing and workflow automation solutions to small businesses.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.