Go to Andrew Gelman's blog here: Statmodeling.stat.columbia.edu
About Error Statistics: Wrote by Deborah G. Mayo a statistical philosopher from Virginia Tech. Offers blog posts and information from a frequentist point of view.
Go to the Error Statistics blog here: ErrorStatistics.com
About Simply Statistics: Ran by three biostatistics professors (Jeff Leek, Roger Peng, and Rafa Irizarry) from Johns Hopkins University, Harvard University or Dana Farber Cancer Institute.
Go to the simply statistics blog here: Simplystatistics.org
About Rob J Hyndman: Rob J Hyndman is Professor of Statistics and Head of the Department of Econometrics and Business Statistics at Monash University. He has won awards for his research, teaching, consulting and graduate supervision.
Go to the Rob J Hyndman blog here: Robjhyndman.com/hyndsight
About John D Cook: This blog, named The Endeavour has short, self-contained articles on a variety of topics, technical and non-technical.
Go to the John D Cook Blog here: Johndcook.com/blog
About Statsblog: Statsblog is not an official blog, bur rather a syndication of other statistical blogs and useful and interesting stat articles.
Go to the Statsblog here: Statsblogs.com
About Statisfaction: This blog is jointly written by Statisticians who did their PhD in Paris (Université Paris-Dauphine, CREST-ENSAE). Mainly tips and tricks useful for everyday jobs.
Go to the Statisfaction blog here: Statisfaction.wordpress.com
About Statistics.com blog. The Institute for Statistics Education is the leading provider of online education in statistics, analytics and data science. Their blog is varied and interesting.
Go to Statistics.com Blog here: Statistics.com/blog
About R/Statistics: This is a sub reddit for the discussion of statistical theory, software and application. The level various from Graduate to expert.
Go to R/Statistics here: Reddit.com/r/statistics/
Please note this list FAR from exhaustive. This is a just a selection of popular resources online. There are many forums and sites which serve for great discussions. If you have any suggestions, please leave them in the comments below.
One industry expert who was not mentioned above is Prof. Stephen Senn as he does not have a centralized blog. We recommend you follow Prof Stephen Senn on twitter and also take a minute to watch one of our interesting discussions with him below.