LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
Startup Stash - A curated directory of 400 resources & tools for startups
whatdevsneed - This is whatdevsneed.
StartupResources.io - Tightly curated lists of the best startup tools
SmallDevTools - Handy developer tools with a delightful interface
SuccessValley - SuccessValley is an online Network Community focus on cultivating and sustaining a Network Community for students and aspiring entrepreneurs.