Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.
KenHub - Use Kenhub to learn anatomy
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Picmonic - Picmonic transforms forgettable facts into memorable stories and characters
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Complete Anatomy - Groundbreaking platform for anatomy education and reference.