Treehouse

Treehouse is an online school that teaches beginners how to create websites and apps. Students learn in a fun environment with high quality video courses and interactive quizzes, and have the support of an active community along the way. 
Treehouse or (Teamtreehouse) is an online technology school that offers beginner to advanced courses in web design, web development, mobile development and game development taught by a team of expert teachers. Its courses are aimed at beginners looking to learn coding skills for a career in the tech industry.
The Treehouse learning program includes videos combined with interactive quizzes and code challenges. Treehouse Tracks are guided curricula, composed of courses that train students in large topic areas. Treehouse Organizations is designed to assist businesses, organizations, schools and community programs in technology training. Companies including Simple and LivingSocial currently use Treehouse to recruit new employees based on their progress and achievements on Treehouse.
In April 2012, Treehouse raised $4.75M in funding.