Statistical Formulas for Programmers

Potentially a useful resource. 

What Beer Would You Like? Building a Recommendation System in Python

A nice little ipython notebook with some data and examples for building simple recommender systems in python

How Python became the language of choice for data science

A good read giving perspective on other language choices for doing data science.

Bokeh – Interactive web visualization library in Python

This is simply incredible, and it's already installed as part of the Anaconda library. 

Video: Practical Medium Data Analytics with Python

From the recent pydata conference.

Woosh: Full Text Search with Python

Add search functionality to your website or app!

scipy lecture notes

A great collection on many scipy topics.

dataset: databases for lazy people in python

This looks like a promising library, SQL databases without the sql? 

Booz Allen Field Guide to Data Science

I haven't read this, so I can't actually vouch for it. However, it's been getting a lot of coverage in my twitter stream.

The central limit theorem, explained with bunnies and dragons

cute. and educational.

Under the Hood: Facebook Entity Graph

Graphs are one way to represent relationships amongst things. Here's an interesting article on FB's entity graph.

Git Cheat Sheet

A list of common commands and options.

ggplot in python

One of the best features of the R programming language is its fantastic ggplot2 visualization library. Looks like there is now a python clone, complete with a nice functional interface. I don't think all the wrinkles have been ironed out, but still pretty cool. 

pandasql: manipulating pandas dataframes with SQL

Pretty cool. I haven't really put this through it's paces, but it's neat after a first impression.

Probabilistic Programming & Bayesian Methods for Hackers

An online book, looks like it's pretty approachable. Uses python. 

Advice for Applying Machine Learning

From Stanford Professor Andrew Ng