A while back I wrote Big data visualization with dc.js and crossfilter which proved to be pretty useful for a lot of people. In the post I sketched just an outline of the solution. For someone not familiar with the workings of dc.js and crossfilter it could be pretty vague. So I've decided to write a full working example of using crossfilter on a Node.js server to render dc.js charts.
I've pushed the code on Github and over the next few days I hope to refine it. The README doc would contain details of things happening under the hood.