Just the links from comments:

http://hndigest.com/

http://ambassadors.thehustle.co/

http://androidweekly.net/

http://ben-evans.com/newsletter

http://delanceyplace.com/

http://eepurl.com/cE6e9H

http://fair.org/

http://fermatslibrary.com/

http://flowingdata.com/

http://fortune.com/tag/term-sheet/

http://freshpatents.com

http://frontendfocus.co/

http://growthhackingidea.com/

http://hackaday.com

http://hackernewsbooks.com/

http://hackerpixels.com/

http://jack-clark.net/import-ai

http://javascriptweekly.com/

http://kottke.org/

http://lererhippeau.com/

http://llvmweekly.org/

http://pablojuan.com/subscribe

http://postgresweekly.com/

http://pruthvishetty.com/bookmark

http://pycoders.com/

http://scalatimes.com/

http://softwareleadweekly.com/

http://subscribe.machinelearnings.co/

http://tedium.co

http://webopsweekly.com/

http://weekly.monitoring.love/

http://www.craftinginterpreters.com/

http://www.devopsweekly.com/

http://www.finsmes.com

http://www.hackernewsletter.com

http://www.juliezhuo.com/design/mailinglist.html

http://www.metzdowd.com/mailman/listinfo/

http://www.oppsdaily.com/

http://www.pointer.io

http://www.pythonweekly.com/

http://www.quantumweekly.com

http://www.thejournal.email/

https://2read.today

https://a16z.com/

https://beta.hndigest.com

https://blog.acolyer.org

https://californiasunday.com

https://changelog.com/weekly

https://club.macstories.net

https://cooperpress.com/publications/

https://csharpdigest.net/

https://ctomentor.network/

https://dadario.com.br

https://danielmiessler.com/podcast/

https://dbader.org/

https://dbader.org/python-tricks

https://DevOpsish.com

https://elixirdigest.net/

https://feedly.com/

https://github.com/Daviey/awesome-mailinglists

https://github.com/explore/subscribe

https://github.com/kilimchoi/engineering-blogs/blob/master/e...

https://github.com/plainflow/plainflow-digested-week/

https://github.com/RSS-Bridge/rss-bridge

https://inside.com/

https://inside.com/readthisthing

https://iosdevweekly.com/

https://labnotes.org/

https://lastweekinaws.com/

https://lists.eff.org/mailman/listinfo/crypto-ops

https://lists.randombit.net/mailman/listinfo/cryptography

https://mailman.srv.cs.cmu.edu/mailman/listinfo/connectionis...

https://mattermark.com/newsletters/

https://nytimes.com/newsletters/morning-briefing

https://porter.io/

https://programmingdigest.net/

https://react.statuscode.com/

https://reactdigest.net/

https://reddit.cool/

https://scout.wisc.edu/about

https://softwareclown.com

https://sreweekly.com/

https://staceyoniot.com/

https://startupresources.io/

https://stratechery.com

https://tedium.co

https://thebrowser.com

https://thebrowser.com/try-the-browser

https://thehackernews.com/

https://thesizzle.com.au

https://tinyletter.com/getputpost

https://tinyletter.com/levthedev

https://umaar.com/dev-tips/

https://www.androiddevdigest.com/

https://www.bloomberg.com/view/topics/money-stuff

https://www.cronweekly.com

https://www.datascienceweekly.org

https://www.feistyduck.com/bulletproof-tls-newsletter/

https://www.getrevue.co/

https://www.google.com/alerts

https://www.indiehackers.com/businesses/hacker-news-books

https://www.launchticker.com/

https://www.newyorker.com/newsletters

https://www.nngroup.com/articles/subscribe/

https://www.productmanagerhq.com

https://www.reddit.com/user/gwern/submitted/

https://www.schneier.com/crypto-gram/

https://www.vikingcodeschool.com/weekly-code-review