diff --git a/🧠-Educational.md b/🧠-Educational.md
index 2468e52e..d8d486f0 100644
--- a/🧠-Educational.md
+++ b/🧠-Educational.md
@@ -264,7 +264,7 @@
 * [JustinGuitar](https://www.justinguitar.com/) or [Guitarsix](https://guitarsix.com/) - Guitar Lessons
 * [Ultimate Guitar](https://www.ultimate-guitar.com/) - Guitar Tabs
 * [Chorder](https://www.chorder.com/guitar-chords/) - Guitar Chord Finder
-* [Guitar Fretboard](https://muted.io/guitar-fretboard/), [Fretastic](https://fretastic.com/guitar) or [Gitori](https://www.gitori.com/) - Virtual Fretboards / Guitar Lessons
+* [Guitar Fretboard](https://muted.io/guitar-fretboard/) or [Gitori](https://www.gitori.com/) - Virtual Fretboards / Guitar Lessons
 * [coop3rdrumm3r](https://www.drumeo.com/coop3rdrumm3r/) or [FreeDrumLessons](https://www.youtube.com/c/freedrumlessons) - Drum Lessons
 * [911tabs](https://www.911tabs.com/) or [Finger Tabs](https://fingertabs.com/) - Tabs
 * [Jazz Improvisor](https://www.cs.hmc.edu/~keller/jazz/improvisor/) - Improvised Jazz
@@ -293,7 +293,7 @@
 * [Curriculum for the Solo Artists](https://alexhuneycutt.gumroad.com/l/free_curriculum) - Self-Taught Artist Curriculum / [PDF Version](https://mega.nz/file/sU0AxThb#m96_xISlS-5wtpSrauWFdh8mjhed7EitknQn_XIBaQc) / [Gallery Version](https://i.redd.it/7ns7su264gp31.png), [2](https://imgur.com/a/EZPc28m)
 * [DoArtDaily](https://dad.gallery) - Daily Art Challenges
 * [Character Design References](https://characterdesignreferences.com/visual-library) - Character Design Visual Library
-* [FloobyNooby](http://www.floobynooby.com/comp1.html), [Let's Learn Storyboarding](https://nicparris.gumroad.com/l/JyCxo), [JMMStoryboardTips](https://jimmortensen.gumroad.com/l/JMMStoryboardTips) or [A Guide to Storyboards](https://magicbunnyart.gumroad.com/l/fjvKA) - Storyboard Guides
+* [FloobyNooby](http://www.floobynooby.com/comp1.html), [JMMStoryboardTips](https://jimmortensen.gumroad.com/l/JMMStoryboardTips) or [A Guide to Storyboards](https://magicbunnyart.gumroad.com/l/fjvKA) - Storyboard Guides
 * [MangaMaterials](https://www.youtube.com/channel/UCnx8zKs3c3yeFPYQ2QzMqLA/) / [X](https://x.com/mangamaterials2), [animesijyuku](https://www.youtube.com/@animesijyuku/) or [DoKiDoKiDrawing](https://www.youtube.com/@DoKiDoKiDrawing/) - Manga Video Tutorials / [Pixiv](https://www.pixiv.net/en/users/16776564)
 * [Settei Dreams](https://setteidreams.net/) - Anime Production Materials
 * [Anime Study General](https://discord.gg/3bwdfRk) - Anime Production Community
@@ -332,7 +332,7 @@
 * 🌐 **[Awesome Datasets](https://github.com/awesomedata/awesome-public-datasets)** - Public Datasets
 * 🌐 **[Country Infographics](https://rentry.org/o4gq6cq5)** - Country Infographic Images
 * ↪️ **[Historical / Modern Maps](https://www.reddit.com/r/FREEMEDIAHECKYEAH/wiki/misc#wiki_.25BA_maps)** - Map Resources
-* ⭐ **[Worldometer](https://www.worldometers.info/)**, [TheScaleOfLife](https://www.thescaleoflife.com/), [WorldBank](https://databank.worldbank.org/), [US Census](https://data.census.gov/), [DataUSA](https://datausa.io/), [Ozymandias](https://population.ozymandias.so/), [Data.gov](https://data.gov/) or [UN Data](https://data.un.org/) - World Data & Statistics
+* ⭐ **[Worldometer](https://www.worldometers.info/)**, [TheScaleOfLife](https://www.thescaleoflife.com/), [WorldBank](https://databank.worldbank.org/), [US Census](https://data.census.gov/), [DataUSA](https://datausa.io/), [Data.gov](https://data.gov/) or [UN Data](https://data.un.org/) - World Data & Statistics
 * ⭐ **[Our World in Data](https://ourworldindata.org/)** - World Problem Database
 * ⭐ **[The Atlas of Economic Complexity](https://atlas.cid.harvard.edu/)** - Global Economic Growth Data
 * ⭐ **[Soar](https://soar.earth/)** - Digital Atlas
@@ -1058,7 +1058,6 @@
 * [Dash](https://dash.generalassemb.ly/) - Web Dev Courses
 * [Web Skills](https://andreasbm.github.io/web-skills/), [Codeguage](https://www.codeguage.com/) / [Discord](https://discord.gg/V8jcS8d2H5), [web.dev](https://web.dev/learn) or [Encodedna](https://www.encodedna.com/) - Web Dev Guides
 * [Codevolution](https://www.youtube.com/@Codevolution) - Web Dev Video Lessons
-* [Local-First Web](https://localfirstweb.dev/) - Local-First Web Development Guide
 * [DOM Events](https://domevents.dev/) - Learn about DOM Events
 * [WebRTCForTheCurious](https://webrtcforthecurious.com/) - WebRTC Guide / [GitHub](https://github.com/webrtc-for-the-curious/webrtc-for-the-curious)
 * [backendlore](https://github.com/fpereiro/backendlore) or [Design Pattern for Humans](https://github.com/kamranahmedse/design-patterns-for-humans) - Backend Coding Guides
@@ -1196,7 +1195,7 @@
 * 🌐 **[CTF Sites](https://ctfsites.github.io/)**, [echoCTF.RED](https://echoctf.red/), [CTF101](https://ctf101.org/), [picoCTF](https://picoctf.org/), [CTF Beginners Guide](https://jaimelightfoot.com/blog/so-you-want-to-ctf-a-beginners-guide/), [CTFtime](https://ctftime.org/) or [CTFLearn](https://ctflearn.com/) - CTF Resources / Guides
 * ⭐ **[HackTricks](https://book.hacktricks.wiki/)** - Practical Penetration Testing & Security Auditing Tips
 * ⭐ **[OWASP Cheatsheet](https://cheatsheetseries.owasp.org/)** - Application Security Guide
-* [Hackers101](https://www.hacker101.com/), [SmashTheStack](https://smashthestack.org/), [WebHacking](https://webhacking.kr/) or [DefendTheWeb](https://defendtheweb.net/) - Cybersecurity Challenges
+* [Hackers101](https://www.hacker101.com/), [SmashTheStack](https://smashthestack.org/) or [WebHacking](https://webhacking.kr/) - Cybersecurity Challenges
 * [Skills for All](https://www.netacad.com/) or [90DaysOfCyberSecurity](https://github.com/farhanashrafdev/90DaysOfCyberSecurity) - Cybersecurity Courses
 * [Sectube](https://sectube.tv/) - IT Security Event Recordings
 * [TryHackMe](https://tryhackme.com/), [Hack The Box](https://www.hackthebox.com/) or [OpenSecurityTraining2](https://opensecuritytraining.info/) - Cybersecurity Lessons
@@ -1370,7 +1369,7 @@
 * [Kalker](https://kalker.xyz/) or [Numbat](https://numbat.dev/) - Scientific Calculators
 * [TicCalc](https://www.ticalc.org/pub/) - TI Graphing Calculator Files
 * [arTIfiCE](https://yvantt.github.io/arTIfiCE/) - TI CE Calculator Jailbreak
-* [Cymath](https://www.cymath.com/), [PhotoMath](https://rentry.co/FMHYBase64#photomath), [Mathway](https://www.mathway.com/), [MathDF](https://mathdf.com/), [Math Solver](https://mathsolver.microsoft.com/en), [Tiger Algebra](https://www.tiger-algebra.com/) or [Symbolab](https://www.symbolab.com/) - Math Problem Solvers
+* [Cymath](https://www.cymath.com/), [PhotoMath](https://rentry.co/FMHYBase64#photomath), [Mathway](https://www.mathway.com/), [MathDF](https://mathdf.com/), [Tiger Algebra](https://www.tiger-algebra.com/) or [Symbolab](https://www.symbolab.com/) - Math Problem Solvers
 
 ***