Blockchain Demo - Visual demonstration of blockchain technology
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
Crypto Jobs List - Work in crypto. Subscribe → Apply → Get hired.
2016 Photo Challenge - Take a photo every day for 366 days
BlockchainI.CO - Research, ratings and analysis on upcoming ICO’s
Woolah - Knockout Photo challenges with your friends.