Learn JavaScript - Learn JavaScript with guided tests and flashcards
Bashupload - Upload files from command line to share between servers
JavaScript.com - A free resource for learning and developing in JavaScript
FilePizza - Open source application used to transfer file via WebRTC and WebTorrent.
The Ultimate SaaS Quiz - Challenge your friends and improve your SaaS knowledge
BlackHole File Transfer - Blockchain-based file transfer. Designed for everyday use.