THE LOOP is a design documentary by InVision.
Ideone is a free online IDE and debugging tool which enables users to share and run code online with own input data and it's designed specifically for programmers and developers.
Llama is an online IDE that let's you prototype code. It supports many languages including html.
Swiftly Tips is a website where you can find short tips to improve your Swift programming skills.
New tips are posted regularly. Hope it be helpful to you.