I LOVE the Meclabs properties. MarketingExperiments.com is absolutely fantastic in particular. Definitely a fan of the others you listed as well. Avinash Kaushik is my analytics hero and I often find myself linking to his pieces when trying to educate about attribution or how to look at data.
SearchEngineLand is pretty decent for getting raw industry news, but some of their pieces are definitely skewed based on the biases of the authors. Believe it or not, there is actually some decent discussion that happens on Reddit in /r/ppc and /r/adops as well as every now and then in Quora.
My biggest problem right now is finding time to digest all the info. I used to be able to carve out a decent chunk when that was a large part of my role in the agency world, but now that I'm client-side my days are filled with many other items, so I have to fit it in where I can.
https://www.informs.org/ (a couple of the journals are published by them); their Analytics magazine is also good, as well as their site.
ama.org
Any book published by Springer, Emeral Insight and Taylor & Francis Group.
for websites - the emarketer.com, meclabs family, econsultancy, conversion-rate-experts.com, distilled, butleranalytics.com, dmnews.com, kaushik.net, analyticsvidhya.com, ppchero.com, internetretailer.com, targetmarketingmag.com, SELand.
I don't like SELand much, but haven't found anything better when it comes to news about search. Do you have any suggestions?