Aha!
Description: Aha! is a roadmapping and product management software that allows product managers to visualize their product strategy, capture ideas, create user stories, prioritize features, plan releases, and get feedback. It helps teams plan, build, and launch products successfully.
Type: software
Mailman
Description: Mailman is an open source mailing list management system. It helps manage email discussion and announcement lists, allowing users to subscribe and unsubscribe, and helping admins moderate and post to the lists.
Type: software
Pricing: Free