data science

O'Reilly Data Newsletter
Deep Learning Weekly
The Analytics Dispatch
Data is Plural
The Algorithm - MIT Technology Review
The Wild Week in AI
Data Elixir
The Data Science Roundup
Hacker News Digest
Center for Data Innovation
TOPBOTS: Applied AI for Bussiness
Import AI
Data Machina
Artificial Intelligence and Deep Learning Weekly
Analytics Vdihya
R-Bloggers
Towards Data Science Newsletter
Data Science Weekly Newsletter
Data Science Community Newsletter - NYU Center for Data Science
Data Science Central
ML Review - Machine Learning Digest
KDNuggets News
Deep Hunt Newsletter

gymnastics

BBC News
FlowGymnastics

nations/china/technology

China EconTalk

programming languages/python

BangPypers
PyCoder's Weekly | A Weekly Python E-Mail Newsletter

programming languages/r

RWeekly.org
The R Journal

programming languages/ruby

Ruby Weekly Archives

software tools/rails

This Week in Rails