Interland by Google - A game to help kids be safe, confident explorers online
Google Open Source - All of Googles open source projects under a single umbrella
Kidpreneurs - Entrepreneurship for kids 6-12 years old
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
KidTech - The best tech for kids & parents curated by Collab Fund
Code NASA - 253 NASA open source software projects