diff --git a/🧠-Educational.md b/🧠-Educational.md
index adecf580..9b4587d0 100644
--- a/🧠-Educational.md
+++ b/🧠-Educational.md
@@ -43,7 +43,7 @@
 * ⭐ **[MitOpenCourseWare](https://ocw.mit.edu/)** - Courses
 * ⭐ **[Khan Academy](https://www.khanacademy.org/)** - Courses / [Downloader](https://github.com/rand-net/khan-dl) / [Solver](https://greasyfork.org/en/scripts/427964)
 * ⭐ **[Class Central](https://www.classcentral.com/)** - Search for Courses
-* [CourseBuffet](https://www.coursebuffet.com/) or [Course CSE](https://cse.google.com/cse?cx=67ed14bf7b99643e3) - Multi-Site Course Search
+* [Course CSE](https://cse.google.com/cse?cx=67ed14bf7b99643e3) - Multi-Site Course Search
 * [Git.ir](https://en.git.ir/) - Courses
 * [OpenLearn](https://www.open.edu/openlearn/) - Courses
 * [Alison](https://alison.com/) - Courses
@@ -547,7 +547,6 @@
 * ⭐ **[Lost and Found Nature](https://www.lostandfoundnature.com/)** - Rediscovered Animal / Plant Database
 * [BiologyOnline](https://www.biologyonline.com/) - Biology Articles
 * [Science Geek](https://www.sciencegeek.net/) - Biology Study Guides
-* [Biodiversity Heritage Library](https://www.biodiversitylibrary.org/) - Biodiversity Research
 * [Alien](https://alien-project.org/) - Artificial Life Simulator / [GitHub](https://github.com/chrxh/alien) / [Video](https://youtu.be/w9R6zrdl6jM)
 * [Metazooa](https://metazooa.com/) - Species Connection Game
 * [⁠Phenome10K](https://www.phenome10k.org/) - Biological / Palaeontological 3D Scans
@@ -690,10 +689,9 @@
 * ⭐ **[Visible Earth](https://visibleearth.nasa.gov/)**, [SpaceFromSpace](https://spacefromspace.com/), [GOES-16 Satellite Imagery](https://rammb-slider.cira.colostate.edu/) or [Sentinel Hub](https://www.sentinel-hub.com/) - Satellite Imagery
 * [⁠NASASpaceFlight](https://www.nasaspaceflight.com/) - Launch Livestreams / News / [Forum](https://forum.nasaspaceflight.com/)
 * [⁠Next Spaceflight](https://nextspaceflight.com/) / [Discord](https://discord.gg/nextspaceflight), [nextrocket.space](https://nextrocket.space/) or [RocketLaunch](https://rocketlaunch.org/) - Rocket Launch / Space Flight Trackers
-* [⁠Spaceflight Archive](https://spaceflight-archive.com/) - Rocket Launch History / Visualizations / Stats
+* [⁠Spaceflight Archive](https://spaceflight-archive.com/) - Rocket Launch History / Visualizations / Stats / [X](https://x.com/S_F_Archive)
 * [TonyBela Infographics](https://tonybela.com/) - Spacecraft / Rocket Infographics / [X](https://x.com/InfographicTony)
 * [⁠Ringwatchers](https://ringwatchers.com/) - Starship Diagrams / Articles / Community  / [X](https://x.com/ringwatchers) / [Discord](https://discord.com/invite/ringwatchers)
-* [NSSDCA](https://nssdc.gsfc.nasa.gov/) - NASA Space Science Mission Data
 * [Sen](https://www.sen.com/) - ISS Live Feed + Video Archive / [YouTube](https://www.youtube.com/@Sen) / [X](https://x.com/sen)
 * [ISS In Realtime](https://issinrealtime.org/) - Historical ISS Mission Replays / Database
 * [ISS Sim](https://iss-sim.spacex.com/) - ISS Docking Simulator