- DataTau seems like a worthwhile Reddit-like site devoted to all things data.
- Foundations of data science [PDF link]. A (quite complete) draft of a rather mathematically oriented book on data science. I haven’t had time to read it yet but it looks interesting. It seems to put quite a lot of emphasis on understanding the quirks of high-dimensional spaces.
- Techniques to improve the accuracy of your predictive models. Useful (1h 20 min long) video of a presentation given by Phil Brierley at an R user group meeting in Melbourne.