Startup Stash - A curated directory of 400 resources & tools for startups
Google Open Source - All of Googles open source projects under a single umbrella
StartupResources.io - Tightly curated lists of the best startup tools
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
SuccessValley - SuccessValley is an online Network Community focus on cultivating and sustaining a Network Community for students and aspiring entrepreneurs.
Open Source @IFTTT - A collection of IFTTT OSS projects.