- http://www.edge.org for long emails about interesting topics.
- A few Stack Exchange weekly newsletters (stackoverflow, programmers, workplace, superuser, stats, data science). The signal to noise ratio can be pretty low but they're easy to skim through.
- Local tech / machine learning groups.
- This week in swing NYC (http://thisweekinswingnyc.wordpress.com/).
I used to get a lot more through rss until Google killed its reader. After halfheartedly looking for alternatives, I decided it wasn't worth it and simply gave up.
Golang Weekly Newsletter http://www.golangweekly.com/
When I was actively doing virology research, I subscribed to ProMed to keep up to date with disease outbreaks, but that was pretty niche specific.
I usually don't like my inbox being hit by mailing lists, too much noise.
- my kids' school's listserv
- Alexis Madrigal 5 things
everything else is RSS