UnderPinned - One app to manage your projects from start to finish.
Startup Stash - A curated directory of 400 resources & tools for startups
Tapwater - All project details. One place.
Content Marketing Stack - A curated directory of content marketing resources
Planning Poker - Open source implementation of planning poker game (collaborative online estimation/voting tool).
StartupResources.io - Tightly curated lists of the best startup tools