The world's largest free community-built encyclopedia
Explore interesting talks on science, technology, history, psychology and much more
Learn about maths, art, computer programming, physics, and more
Interactive simulation for Science and Maths
Learn to program and make your own games you can share with your friends
The world's largest collection of free books
Your own community Youtube (user: guest, password: guest)
Share files with friends and backup all those photos on your phone
Play chess against your friends or a chess computer
Play a minecraft-like game with friends without using any data
