Paper Planes - Relaxing web app that lets you throw paper planes with people across the world.
Neal.fun - Hi!
Earth Reviews - Review things on Earth to help improve the simulation
SpaceHey - SpaceHey is a retro social network focused on privacy and customizability. It's a friendly place to have fun, meet friends, and be creative. Join for free!
Three.js - A JavaScript 3D library which makes WebGL simpler.
Clash.me - Create audio mashups from popular soundbites.