http://codezz.co/ (Digital Ocean)
http://marcbernabeu.koding.io/
We are glad to present you Codezz, a platform for beginners programmers that allow learn and gain the basic knowledge required to start programming in HTML5, CSS3, PHP, XML, JSON and many more. What is Codezz? Codezz is an interactive platform that helps those who are new to the world of programming, where through a system Drag & Drop you learn the basic structure and organization of basic programming languages. Browse through the different levels of learning, solving puzzles correctly and collect unique achievements!
GitHub for sign in
Google for sign in
SendGrid for send transactional emails