How to start designing with (open) data and JavaScript, for dummies?
<p>I've been designing data-driven interfaces (mostly graphic, low fidelity and non-functional prototypes) for over a year, to be implemented using JavaScript libraries such as <a href="http://mbostock.github.com/d3/" rel="nofollow">d3.js</a>. Although I'm a web designer by education, I've never actually coded any data visualization.</p>

<p>Are there any crash-course or quick online tutorial showing how to deal with (open) data using jQuery (or libraries such as d3.js and Polymaps), for dummies? I'd really like to learn the basics: handle JSON, understand big data, plot basic graphs, etc.</p>
