Carrd - Simple, responsive one-page site creator.
Startup Toolkit - Interactive how-to guides to launch your startup
Cargo - Cargo Collective is a web publishing platform that creates and offers accessible tools online.
Manager checklist - Cheatsheet of things every manager should do
Responsivize - A must-have tool to develop responsive websites
Where To Post Your Product - A curated collection of 280+ websites to share your startup