It is incredible what some people can do with pencil and paper. Amazing.
Web app that helps connect people who are looking for collaborators.
A challenge is posted on Mondays (easy), Wednesdays (medium) and Friday (hard). Solutions are submitted as spoiler-free comments in any programming language you want. I saw Cobol, ASM, lots of Python, etc.
This was highly recommended by two panelists from the Ruby Rogues episode featuring Gary Bernhardt .
Just watched this later (02/26/2014) and it is fantastic.
Post on Flask layout by Matt Wright. He has other Flask-related articles on his site.
Erlang programming guidelines.
A beginner's book to learning Erlang. Highly recommended by just about everyone.
This is what Ian Bicking is currently prototyping. It uses another really cool project he's worked on at Mozilla called Together/JS. Hot dish (and TogetherJS) are tools that allow people to communicate with one another remotely while interacting with a web page or browser session.
Free online, interactive version of the book by Scott Murray.
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.