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MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Software Product Management Stack - Resources & tools to help you manage your software product
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
The Product Management guide - A book on how to create and ship products that people love
BizConnector - BizConnector offers marketing and workflow automation solutions to small businesses.
Product Management Exercises - A repository of product manager job interview exercises