KDnuggets is one of the most popular data science blogs, with articles that cover Business Analytics, Statistics, and Machine Learning.
Data Science Central is the industry's online resource for big data practitioners.
Regular "how I did it" posts from machine learning competition winners, as well as more general data science tips from a practitioner's perspective.
More than 750 R enthusiasts and experts contribute the blog, making it one of the most informative data science blogs on the web.
A statistics blog by three biostatistics professors - Rafa Irizarry, Roger Peng, and Jeff Leek.
Andrew Gelman's blog on data analysis and statistics. He frequently writes about Bayesian statistics, displaying data, and interesting trends in social science.
Read writing about Data Science in Airbnb Engineering & Data Science. Creative engineers and data scientists building a world where you can belong anywhere.
Data@Quora is a blog where Quora data scientists share what we have learned while helping Quora scale and grow.
FastML is meant to tackle interesting topics in machine learning while being entertaining and easy to read and understand.
The blog features tutorials and how-to articles on data science, which will help you to start a career in data science.
Towards Data Science provides a platform for thousands of people to exchange ideas and to expand our understanding of data science.
Daily news about using open source R for big data analysis, predictive modeling, data science, and visualization.
FlowingData explores how statisticians, designers, data scientists, and others use analysis, visualization, and exploration to understand data and ourselves.
The Domino Data Science Blog features news and in-depth articles on data science best practices, trends, and tools.
Insightful thoughts and amusing tidbits about predictive analytics, machine learning and engineering.