Think Bayes — an introduction to Bayesian statistics using computational methods.
The State of Javascript 2012 (Brendan Eich) — Javascript continues its march up and down the stack, simultaneously becoming an application language while becoming the bytecode for the world.
Divshot — a startup turning mockups into web apps, built on top of the Bootstrap front-end framework. I feel momentum and a tipping point approaching, where building things on the web is about to get easier again (the way it did with Ruby on Rails). cf Jetstrap.