Prisma - Art filters using artificial intelligence to transform your photos into classic artwork.
Spectacle V0 (previously Startup-Videos) - Showcasing the best startup videos
Ostagram.me - Combine images to create your own masterpiece.
Bloc.io - Learn to code and become a web developer in Ruby on Rails, HTML, CSS, Javascript, and jQuery in Bloc's Intense Online Web Development Apprenticeship.
Fonty - Simple tool for testing web fonts directly on live sites
Sandwich Video - Great videos about great products.