Ship Your Side Project - Make enormous progress on your side project in just 6 weeks
Hygger - Hygger - is an Agile project management tool with built-in prioritization.
SideProject Book - 39 interviews about building profitable side projects
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
HAMO - Work together to promote and fund interesting side projects🚀
Validated ideas - List of 5,000 poorly executed but popular apps