updated 16 pages

docs/edupiracyguide.md

@@ -174,7 +174,6 @@
 * [Imperial War Museums](https://www.iwm.org.uk/) - Historic War Footage
 * [Museo](https://museo.app/) - Museum Search
 * [Wonderous](https://play.google.com/store/apps/details?id=com.gskinner.flutter.wonders) - Learn About Ancient Structures
-* [Letters of Note](https://news.lettersofnote.com/) - Historical Letters
 * [Shorpy](https://shorpy.com/) or [Old World](https://oldworld.cloud/) - Historical Photos
 * [EyewitnesstoHistory](http://www.eyewitnesstohistory.com/index.html) - Historical Eyewitness Testimonies
 * [ManuscriptMiniatures](https://manuscriptminiatures.com/) - Medieval Manuscript Images
@@ -607,6 +606,7 @@
 * [PubChem](https://pubchem.ncbi.nlm.nih.gov/), [MOTM](https://www.chm.bris.ac.uk/motm/motm.htm), [NIST](https://webbook.nist.gov/chemistry/) or [EssentialChemicalIndustry](https://www.essentialchemicalindustry.org/) - Chemistry Wikis
 * [ChemistrySteps](https://www.chemistrysteps.com/) or [DocBrown](https://docbrown.info/) - Chemistry Practice / Guides
 * [Cliffnotes Chemistry](https://www.cliffsnotes.com/study-guides/chemistry/chemistry/elements/discovery-and-similarity) / [Organic Chemistry I](https://www.cliffsnotes.com/study-guides/chemistry/organic-chemistry-i) / [Organic Chemistry II](https://www.cliffsnotes.com/study-guides/chemistry/organic-chemistry-ii), [Chem Wiki](https://wiki.ch.ic.ac.uk/wiki/) or [chemguide](https://www.chemguide.co.uk) - Study Guides
+* [ReactionFlash](https://play.google.com/store/apps/details?id=ch.reaxys.reactionflash&hl=en-US) / [iOS](https://apps.apple.com/us/app/reactionflash/id432080813) - Chemical Reaction Flashcards
 * [ChemistryTalk](https://chemistrytalk.org/) - Tutorials / Experiments / Elements / Reference Articles
 * [Sciencenotes](https://sciencenotes.org) - Periodic Tables / Chemistry Projects and Questions
 * [Organic Chemistry](https://www.organic-chemistry.org) or [Synarchive](https://synarchive.com/) - Organic Reactions
@@ -945,6 +945,7 @@
 * [Hyperskill](https://hyperskill.org/) - Programming Courses
 * [EggHead](https://egghead.io/) - Programming Courses
 * [TechSchool](https://techschool.dev/en) - Programming Courses / [Discord](https://discord.com/invite/C4abRX5skH)
+* [Refactoring.Guru](https://refactoring.guru/) - Interactive Code Refactoring Guide
 * [USACO Guide](https://usaco.guide/) - Competitive Programming Lessons
 * [Beej's Guides](https://www.beej.us/guide/) or [LearnByExample](https://learnbyexample.github.io/) - Programming Guides
 * [HelloWorldCollection](http://helloworldcollection.de/) - Hello World Programming Collection
@@ -1043,6 +1044,7 @@
 * [STPG](https://stpg-tk.netlify.app/guides/) - Startpage Creation Guides / [Discord](https://discord.com/invite/ExAGgVR)
 * [Web Design in 4 Minutes](https://jgthms.com/web-design-in-4-minutes/) or [Strml](https://www.strml.net/) - Interactive Web Design Tutorial
 * [WebGL and GLSL Workshop](https://mattdesl.github.io/workshop-webgl-glsl/) - Interactive WebGL / GLSL Tutorial
+* [HEAD](https://htmlhead.dev/) - HTML head Element Guide
 * [css-animation](https://css-animations.io/) - CSS Animation Tutorial
 * [100DayCSS](https://100dayscss.com/), [CSS Challenges](https://css-challenges.com/) or [PlayCSS](https://playcss.app/) - CSS Challenges
 * [Codepip](https://codepip.com/games/), [Grid Garden](https://cssgridgarden.com/), [CSS Battle](https://cssbattle.dev/), [CSS Speedrun](https://css-speedrun.netlify.app/), [CodingFantasy](https://codingfantasy.com/) or [CSS Diner](https://flukeout.github.io/) - CSS Learning Games
@@ -1088,6 +1090,11 @@
 * [From Nand To Tetris](https://www.nand2tetris.org/course) - Computer Building Lesson
 * [Copetti](https://www.copetti.org/) - In-depth Console Architecture Analysis / [GitHub](https://github.com/flipacholas/Architecture-of-consoles)
 * [Web Browser Engineering](https://browser.engineering/) - Learn about Browser Engineering
+* [ OSDev Wiki]() -
+
+Operating System Dev Wiki
+https://wiki.osdev.org/ 
+
 * [OSTEP](https://pages.cs.wisc.edu/~remzi/OSTEP/) - Operating Systems Book
 * [Wi is Fi](https://www.wiisfi.com/) - Wi-Fi Educational Guide
 * [CPU Land](https://cpu.land/) - What Happens when you run Programs
@@ -1129,6 +1136,7 @@
 * [Exercism](https://exercism.org/), [HackerRank](https://www.hackerrank.com/) or [CS Circles](https://cscircles.cemc.uwaterloo.ca/) - Programming Lessons
 * [Algorithms-Cheatsheet-Resources](https://github.com/starkblaze01/Algorithms-Cheatsheet-Resources) - Code Algorithm Cheat Sheets
 * [algorithms](https://prashantbarahi.com.np/docs/algorithms/intro) - Code Algorithms & Data Structures Tutorials
+* [JavaScript Algorithms](https://github.com/trekhleb/javascript-algorithms) - Algorithms and Data Structures in JavaScript
 * [VisuAlgo](https://visualgo.net/) - Data Structures & Algorithm Animations
 * [Algorithm Visualizer](https://algorithm-visualizer.org/) or [Sorting Algorithms Visuallizer](https://sadanandpai.github.io/algo-visualizers/#/sorting-visualizer/bubble) / [GitHub](https://github.com/sadanandpai/sorting-visualizer) - Visualize Code Algorithms
 * [The Algorithms](https://the-algorithms.com/) - Algorithms Index
@@ -1384,6 +1392,7 @@
 
 ## ▷ Encyclopedias
 
+* 🌐 **[List of Encyclopedias](https://en.wikipedia.org/wiki/List_of_online_encyclopedias)** - Online Encyclopedia Index
 * ⭐ **[Wikipedia](https://www.wikipedia.org/)** - Encyclopedia / [Content List](https://en.wikipedia.org/wiki/Wikipedia:Contents/Lists)
 * ⭐ **Wikipedia Frontends** - [WikiWand](https://www.wikiwand.com/) or [ModernWiki](https://www.modernwiki.app/)
 * ⭐ **[Wolfram Alpha](https://www.wolframalpha.com/)** - Searchable Knowledgebase