The presentation was Thinking in Data by Alex Miller (based on or similar to his Enemy of the State talk, which was very good. The venue was the Riot Games office in Clayton, which was cool to see. The walls are decorated in art from League of Legends. It felt like a good crowd who was eager to learn.
Seeing a demo app, then a high-level overview of the messages & queues architecture made things clearer.
The official Pedestal tutorial.
A general overview of Pedestal from the awesome guy behind Clojure Cup.
Very well done ClojureScript compiler as a service (CaaS?). This would make a fantastic foundation to teach/learn ClojureScript directly on the page in an interactive manner.
The open-source version of O'Reilly's Clojure Cookbook.
This is so good: For truth! For beauty! For art! Charge!. How many people can be this compelling in front of a crowded room?
From scala-lang.org.
A Scala tutorial by Twitter. See also Effective Scala which is their Scala best practices guide.
A coursera course on Scala
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.