Electron - Build cross platform desktop apps with web technologies
Take The Bait - A blog about building your MVP & finding your first customer
Tuemilio - Email forms and referral waiting lists for indie makers
Lean Canvas - Business plans take too long to write, are seldom updated, and almost never read by others but documenting your hypotheses is key. Lean Canvas solves this problem using a 1-page business model.
JumpStart Toolkit - A pack of tools and goodies to jumpstart your startup
Launch Library - Hundreds of resources on how to launch literally anything