diff --git a/🧠-Educational.md b/🧠-Educational.md
index 61fdc144..fce6cb42 100644
--- a/🧠-Educational.md
+++ b/🧠-Educational.md
@@ -576,6 +576,7 @@
 * 🌐 **[The Engineering Toolbox](https://www.engineeringtoolbox.com/)** or [EngineersEdge](https://www.engineersedge.com/) - Engineering Resources
 * 🌐 **[/r/EngineeringStudents Resources](https://www.reddit.com/r/EngineeringStudents/wiki/resources)** - Engineering Student Resources
 * 🌐 **[Awesome Mecheng](https://github.com/m2n037/awesome-mecheng)** - Mechanical Engineering Resources
+* 🌐 **[Engineering Blogs](https://github.com/kilimchoi/engineering-blogs)** - Engineering Blogs
 * ↪️ **[Comp Sci Resources](https://www.reddit.com/r/FREEMEDIAHECKYEAH/wiki/dev-tools#wiki_.25B7_computer_science)**
 * ↪️ **[3D Modeling](https://www.reddit.com/r/FREEMEDIAHECKYEAH/wiki/storage#wiki_3d_modeling_apps) / [CAD Apps](https://www.reddit.com/r/FREEMEDIAHECKYEAH/wiki/storage#wiki_cad_engineering)**
 * ⭐ **[/r/AskEngineers](https://www.reddit.com/r/AskEngineers/)** / [Wiki](https://www.reddit.com/r/AskEngineers/wiki/), **[/r/engineering](https://www.reddit.com/r/engineering/)** or [/r/AutomotiveEngineering](https://www.reddit.com/r/AutomotiveEngineering/) - Engineering Subreddits
@@ -962,7 +963,7 @@
 * [Project Based Learning](https://github.com/practical-tutorials/project-based-learning) - Collection of Project-Based Tutorials
 * [Interview University](https://github.com/jwasham/coding-interview-university) - Software Engineer Study Guides
 * [Software Engineering Interview Preparation](https://github.com/orrsella/soft-eng-interview-prep) - Software Engineer Interview Preparation
-* [system-design-primer](https://github.com/donnemartin/system-design-primer) - Large Scale System Design Guides
+* [⁠System Design 101](https://github.com/ByteByteGoHq/system-design-101) or [system-design-primer](https://github.com/donnemartin/system-design-primer) - System Design Guides
 * [LearnToCloud](https://learntocloud.guide/) - Cloud Computing Guide
 * [Swift Playgrounds](https://developer.apple.com/tutorials/swiftui) - Learn Swift UI / [Samples](https://developer.apple.com/tutorials/sample-apps)
 * [LearnYouHaskell](https://learnyouahaskell.github.io/) - Haskell Guide
@@ -1095,11 +1096,7 @@
 * [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/ 
-
+* [ OSDev Wiki](https://wiki.osdev.org/) - Operating System Dev Wiki
 * [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