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MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
BizConnector - BizConnector offers marketing and workflow automation solutions to small businesses.
Google Calendar - Spend less time managing your day & more time enjoying it
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.
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.