Algo Trading

• http://wuyuansheng.brinkster.net/books/technology/maxdama.pdf
• https://medium.com/galois-capital/algorithmic-trading-in-crypto-430431da1e0a

Art

• https://www.openculture.com/2020/04/experience-the-van-gogh-museum-in-4k-resolution-a-video-tour-in-seven-parts.html
• https://museo.app/

Books

• https://www.openculture.com/2013/11/joseph-brodskys-reading-list-for-having-an-intelligent-conversation.html
• https://www.artofmanliness.com/articles/books-so-good-ive-read-them-2x-or-more/
• https://www.openculture.com/2021/07/divine-comedy-digital.html

Chess

• https://www.chesstactics.org/

Culture

• https://www.strategic-culture.org/news/2021/02/02/robinhood-stealing-from-poor-give-rich/

Cooking

• https://www.kqed.org/w/morefastfoodmyway/recipes.html

Crytography

• https://www.intensecrypto.org/public/

Cyber Security

• https://dev.to/manticorevault/resources-to-get-you-started-in-cybersecurity-for-free-327o

C++

• https://www.youtube.com/channel/UClEEsT7DkdVO_fkrBw0OTrA
• http://www.learncpp.com/
• https://www.codeproject.com/Articles/2995/The-Complete-Guide-to-C-Strings-Part-I-Win32-Chara

Database

• https://dev.to/helenanders26/50-sql-interview-questions-4jpb
• http://compgroups.net/comp.databases.ibm-db2/run-db2cmd-commands-through-powershell/2111649
• http://web.cecs.pdx.edu/~maier/TheoryBook/TRD.html
• https://www.sachinrameshoracledbablog.com/2019/06/oracle-dba-scripts-all-in-one-place.html
• https://ahmedfattah.com/2018/05/24/oracle-rman-database-incremental-backup-script/

Data Science / Data Engineering

• https://www.mltut.com/free-online-courses-for-data-science/

Data Structure and Algorithm

• https://hackernoon.com/50-data-structure-and-algorithms-interview-questions-for-programmers-b4b1ac61f5b0
• Algorithm Archive https://www.algorithm-archive.org/
• https://hackernoon.com/10-data-structure-algorithms-and-programming-courses-to-crack-any-coding-interview-e1c50b30b927
• https://dev.to/javinpaul/50-data-structure-and-algorithms-problems-from-coding-interviews-4lh2
• https://blog.pragmaticengineer.com/data-structures-and-algorithms-i-actually-used-day-to-day
• https://dev.to/codinglanguages/how-to-learn-not-memorize-any-algorithm-or-data-structure-analysis-of-20-problem-solving-techniques-you-must-know-d77
• https://blog.evjang.com/2018/08/dijkstras.html

Dev Community

• https://dev.to/

Devops

• https://dev.to/javinpaul/top-10-devops-training-courses-for-programmers-and-software-developers-195n
• https://pingles.medium.com/convergence-to-kubernetes-137ffa7ea2bc

Javascript

• https://dev.to/subhampreet/8-javascript-animation-libraries-you-should-must-try-2ac

Go

• Brief Introduction https://www.linkedin.com/pulse/brief-introduction-go-programming-language-hua-wang-ph-d-/
• https://gobyexample.com/
• https://golangexample.com/
• https://golangbot.com/
• Building Go Web Applications and Microservices Using Gin https://semaphoreci.com/community/tutorials/building-go-web-applications-and-microservices-using-gin
• https://dev.to/codehakase/building-a-web-app-with-go-gin-and-react-5ke
• https://dev.to/stevensunflash/using-golang-concurrency-in-production-3ma4
• Resources http://go-lang.cat-v.org/ 
• Web Scraping http://benjamincongdon.me/blog/2018/03/01/Scraping-the-Web-in-Golang-with-Colly-and-Goquery/
• liteide http://liteide.org
• http://www.golangprograms.com/
• https://github.com/avelino/awesome-go
• http://www.goldsborough.me/go/2020/12/06/12-24-24-non-blocking_parallelism_for_services_in_go/
• https://gywn.blog/2021/07/15/create-your-own-exporter-in-go/

History

• https://ufdc.ufl.edu/baldwin/all/thumbs
• https://www.strategic-culture.org/news/2020/06/13/2-the-siege-of-leningrad/

Languages

• http://www.openculture.com/freelanguagelessons

Machine Learning

• https://www.youtube.com/channel/UCWN3xxRkmTPmbKwht9FuE5A
• http://www.cis.upenn.edu/~jean/math-basics.pdf

Magazines

• https://magazinelib.com

MMOC

• https://www.openculture.com/2020/10/a-master-list-of-1500-free-courses-from-top-universities.html

*NIX

• https://clig.dev/
• https://www.cyberciti.biz/tips/top-linux-monitoring-tools.html
• https://adamdrake.com/command-line-tools-can-be-235x-faster-than-your-hadoop-cluster.html
• https://dev.to/enutrof/a-lightweight-path-to-virtualisation-3hl1
• https://www.tecmint.com/run-sudo-command-without-password-linux/

Philosophy

• https://www.openculture.com/2020/12/88-philosophy-podcasts-to-help-you-answer-the-big-questions-in-life.html
• https://ryanholiday.net/philosophy-reading-list/

Physics

• https://twitter.com/thePiggsBoson/status/1416715292571406342 Wanna Learn Nuclear and Particle Physics for free?

Podcasts

• http://www.openculture.com/great-podcasts

Poetry

• https://www.artofmanliness.com/articles/20-best-poems/

PowerShell

• https://blogs.technet.microsoft.com/heyscriptingguy/2014/07/17/using-the-split-method-in-powershell/
• http://www.lukepuplett.com/2013/01/ensuring-that-two-powershell-scripts.html
• https://powershell.org/forums/topic/powershell-mutex-not-working-as-expected/

Programming

• https://github.com/EbookFoundation/free-programming-books/blob/master/free-programming-books.md
• https://medium.com/@aloukissas/programming-principles-from-id-software-bed83e762210
• https://dev.to/denicmarko/github-repositories-to-improve-your-programming-skills-2d1e
• https://goalkicker.com/

Python

• https://automatetheboringstuff.com/
• http://book.pythontips.com/en/latest/
• https://boostlog.io/@nixus89896/17-best-python-libraries-5ad83a3247018500491f3e5b
• Scikit-learn DBSCAN https://geoffboeing.com/2014/08/clustering-to-reduce-spatial-data-set-size/
• GPS data extraction http://geospatialtraining.com/extracting-geographic-coordinates-from-photos-using-python/
• Data science toolkit https://www.datasciencecentral.com/profiles/blogs/free-book-the-definitive-guide-to-pandas
• Solving Sudoku http://norvig.com/sudoku.html

Resource

• http://www.fmwconcepts.com/imagemagick/vignette3/index.php

Short Stories

• 29 Free short stories http://www.openculture.com/2020/07/29-free-short-stories-from-some-of-todays-most-acclaimed-writers.html

Signal Processing

• https://www.analog.com/en/education/education-library/scientist_engineers_guide.html

Startup

• Disciplined Entrepreneurship by Bill Aulet
• From Founder to CEO https://docs.google.com/document/d/1ZJZbv4J6FZ8Dnb0JuMhJxTnwl-dwqx5xl0s65DE3wO8/preview#heading=h.pdmqf3646hgt
• Ycombinator Startup School https://www.startupschool.org/library
• How to start a start up https://www.openculture.com/2016/07/how-to-start-a-start-up-a-free-course-from-y-combinator-taught-at-stanford.html
• All things sales https://a16z.com/2018/09/02/sales-startups-technical-founders/
•  

Speech

• https://www.artofmanliness.com/articles/the-35-greatest-speeches-in-history/
• https://www.pbs.org/wnet/americanmasters/archive

Textbook

• http://www.dzkbw.com/

Tools

• https://mattwarren.org/2018/06/15/Tools-for-Exploring-.NET-Internals/

UI

• https://dev.to/sm0ke/free-ui-kit-a-curated-list-4dg
• https://dev.to/exwhyzed0/best-free-compilation-of-graphic-design-web-dev-ui-ux-resources-471c

Web Authoring

• https://github.com/codrops
• https://vgpena.github.io/using-css-grid-the-right-way/