Little by little, I will post here all the wonderful courses that I have taken online, for which however I have received no certificate of completion since they are not structured to assess (much less so to validate) the degree of learning that one achieves on each of them; I do think nonetheless that all these courses have been life-changing personally, and they could have a comparable (or even greater) impact on everyone else.

UC DAVIS: PSYCHOLOGY & THE MIND

UNIVERSITY OF ARIZONA

No longer available in Mexico, but worth the try using a VPN:

https://podcasts.apple.com/us/podcast/the-evolving-brain-ua-science-2014-lectures/id816306492

COLUMBIA UNIVERSITY

(iTunes University)

MORE FROM THE MIT OPEN COURSEWARE

(iTunes University)

UNIVERSITY OF CALIFORNIA TELEVISION

(iTunes University)

UNIVERSITY OF OXFORD

(iTunes University)

UNIVERSITY OF CAMBRIDGE

(iTunes University)

OTHER UNIVERSITIES

(iTunes University)

MISCELLANEOUS

The following are random lists from which one can take up new courses.

System 1 & System 2

Microscopy

OTHERS