Here are some that I've found useful:
- - Edwin regularly gives insanely clear and practical examples of data analyses, complete with code samples and visualizations, as well as the occasional very insightful and down-to-earth explanation of sophisticated machine learning algorithms
- - John Langford is one of the foremost applied machine learning researchers & the author of Vowpal Wabbit, a large scale ML tool used widely in the tech industry. His blog is blog runs at the intersection of theory and practice; see Clever Methods of Overfitting ( ) for an example of the best his blog has to offer.
- Awesome Datascience
- Analytics, Data Mining, and Data Science
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