Startup Toolkit - Interactive how-to guides to launch your startup
Freeplane - Freeplane is a powerful and free software for building mind maps.
Manager checklist - Cheatsheet of things every manager should do
SuperNotecard - Introducing SuperNotecard. SuperNotecard is an online writing tool that features virtual notecards to help arrange facts or scenes, track details, organize paragraphs, and clarify your composition process.
Where To Post Your Product - A curated collection of 280+ websites to share your startup
Linked Ideas - A macOS/iOS apps to treat ideas as links of concepts.