What are some good blogs/newsletters to follow related to Analytics/Data Science/Operations Research?

Any suggestions?

TDS and some other medium blogs seem very cluttered nowadays. It is quantity over quality for them but I am looking for the opposite.

For OR, I follow these two blogs:
1. Yet another math programming consultant
2. OR in an OB world

Any suggestions?

#data #datascience #analytics #operationsresearch #python #rstats #foss #opensource #blogs #newsletter