Tag: tutorial 
Dan Grossman's class on Programming Languages. It starts by introducing foundational ideas using ML, then builds on top of them using other languages to introduce new concepts. After watching several videos, this is an easy one to recommend.
Also, from re-frame's github project page wiki is this entry on how to bootstrap a re-frame app.
An introduction to protocols. I came across this when trying to understand how Om components work.
Another post here using the example of encoding json.
A series of video tutorials on various Clojure topics by Tim Baldrige.
An interactive tutorial that teaches you Processing. Taught by Daniel Shiffman. Love his enthusiasm.
The official Pedestal tutorial.
A Python DS & A book using interactive examples. Every time I go back and check this thing, it has gotten better. You can now see the execution environment in the examples of the apps due to the book using IPython Notebook.
A collection of Data Science Learning materials in the form of IPython Notebooks.
A tutorial covering many aspects of Django development
Pretty extensive tutorial on ClojureScript.
Nice, concise overview of Clojure syntax
"4Clojure is a resource to help fledgling clojurians learn the language through interactive problems."
The material for the Young Coders Tutorial that was taught at Pycon 2013
This looks incredible.
Video-based lessons on Django.