diff --git a/M3-command-line/L6/index.html b/M3-command-line/L6/index.html
index 3d23d7a..cf3412a 100644
--- a/M3-command-line/L6/index.html
+++ b/M3-command-line/L6/index.html
@@ -21,7 +21,7 @@ <h1>More Resources to Learn about Command Line</h1>
       <li><a href="https://help.ubuntu.com/community/CommandlineHowto" target="_blank">Command Line How-To</a></li>
       <li><a href="https://help.ubuntu.com/community/UsingTheTerminal" target="_blank">Using the Terminal</a></li>
       <li><a href="https://missing.csail.mit.edu/2020/course-shell/" target="_blank">MIT: Your Missing CS Semester: The Shell</a> and <a href="https://missing.csail.mit.edu/2020/shell-tools/" target="_blank">Shell Tools</a></li>
-      <li><a href="https://www.theodinproject.com/courses/foundations/lessons/command-line-basics-web-development-101" target="_blank">The Odin Project: Command Line Basics</a></li>
+      <li><a href="https://www.theodinproject.com/lessons/foundations-command-line-basics" target="_blank">The Odin Project: Command Line Basics </a></li>
       <li><a href="https://agstakingco.gitbook.io/ethereum-2-0-ubuntu-for-beginners/#linux-terminal-basic-commands" target="_blank">Ubuntu for Beginners: Linux Terminal Basic Commands</a> </li>
       <li><a href="https://www.codecademy.com/learn/learn-the-command-line" target="_blank">Code Academy: Learn the Command Line</a></li>
     </ul>
diff --git a/M5-git/L5/index.html b/M5-git/L5/index.html
index 6a90dee..134e9f6 100644
--- a/M5-git/L5/index.html
+++ b/M5-git/L5/index.html
@@ -28,8 +28,8 @@ <h1>Learning More Git</h1>
     <ul>
       <h2>Introductory Content</h2>
         <li><a href="https://guides.github.com/activities/hello-world/" target="_blank">Github Official Hello World Tutorial Series</a></li>
-        <li><a href="https://www.theodinproject.com/courses/foundations/lessons/setting-up-git" target="_blank">The Odin Project: Setting Up Git</a></li>
-        <li><a href="https://www.theodinproject.com/courses/foundations/#git-basics" target="_blank">The Odin Project: Git Basics</a></li>
+        <li><a href="https://www.theodinproject.com/lessons/foundations-setting-up-git" target="_blank">The Odin Project: Setting Up Git</a></li>
+        <li><a href="https://www.theodinproject.com/lessons/foundations-git-basics" target="_blank">The Odin Project: Git Basics</a></li>
         <li><a href="https://missing.csail.mit.edu/2020/version-control/" target="_blank">MIT Missing CS Semester: Version Control (git)</a></li>
         <li><a href="https://learngitbranching.js.org/" target="_blank">Learn Git Branching (interactive tutorial)</a></li>
         <li><a href="https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZF9C0YMKuns9sLDzK6zoiV" target="_blank">Git and Github for Poets (video)</a></li>
diff --git a/M5-git/L6/index.html b/M5-git/L6/index.html
index b0f9b55..1525e15 100644
--- a/M5-git/L6/index.html
+++ b/M5-git/L6/index.html
@@ -60,7 +60,7 @@ <h2>Contributor Guidelines</h2>
         <ul>
           <li>Join the <a href="http://www.discord.com" target="_blank">Discord</a> or <a href="https://gitter.im/" target="_blank">Gitter</a> for the repository, project or team</li> 
           <li>Ask for guidance to good first issues if they’re not properly marked</li>
-          <li>Read up on community contributor guidelines. For example, here is Go-Ethereum's <a href="https://geth.ethereum.org/docs/developers/devguide" target="_blank">Community Contributor page</a> and their <a href="https://geth.ethereum.org/docs/developers/code-review-guidelines" target="_blank">Code Review Guidelines</a></li> 
+          <li>Read up on community contributor guidelines. For example, here is Go-Ethereum's <a href="https://geth.ethereum.org/docs/developers/geth-developer/contributing" target="_blank">Community Contributor page</a> and their <a href="https://geth.ethereum.org/docs/developers/geth-developer/code-review-guidelines" target="_blank">Code Review Guidelines</a></li> 
           <li>Read through open <i>and</i> closed Pull Requests. In the Pull Request section, you can find all Pull Requests. Click through a few and see if you can  understand how the project processes Pull Requests.</li></ul></p>
 
 
diff --git a/M6-javascript/L3/index.html b/M6-javascript/L3/index.html
index 9edf6b2..2fcb953 100644
--- a/M6-javascript/L3/index.html
+++ b/M6-javascript/L3/index.html
@@ -27,7 +27,7 @@ <h1>Learning More About Javascript</h1>
   
     <ul>
       <li><a href="https://www.codecademy.com/learn/introduction-to-javascript" target="_blank">Code Academy's free Intro to Javascript course</a></li>
-      <li><a href="https://www.theodinproject.com/courses/foundations/#javascript-basics" target="_blank">The Odin Project's Javascript Basics</a></li>
+      <li><a href="https://www.theodinproject.com/paths/full-stack-javascript/courses/javascript" target="_blank">The Odin Project's Javascript Course</a></li>
       <li><a href="https://www.udacity.com/course/javascript-basics--ud804" target="_blank">Udacity: Javascript Basics</a></li>
       <li><a href="https://jsisweird.com/" target="_blank">JS is Weird</a> A walkthrough of the quirky syntax aspects of Javascript, good for all levels of JS developers!</li>
       <li><a href="https://javascript.info/" target="_blank">The Modern Javascript Tutorial</a></li>
diff --git a/M6-javascript/L4/index.html b/M6-javascript/L4/index.html
index 416c178..3c2c928 100644
--- a/M6-javascript/L4/index.html
+++ b/M6-javascript/L4/index.html
@@ -92,7 +92,7 @@ <h2>Learn More About Node</h2>
         <li><a href="https://www.nodebeginner.org/" target="_blank">The Node Beginner Book</a></li>
         <li><a href="https://thenextweb.com/news/here-are-15-of-the-most-asked-node-js-interview-questions" target="_blank">15 of the Most Asked Node.js Interview Questions</a> A good overview of Node from the perspective of an interview</li>
         <li><a href="https://blog.bloomca.me/2018/12/22/writing-a-web-server-node.html" target="_blank">Node.js Fundamentals: Web Server Without Dependencies</a> Get introduced to fundamental concepts in Node by building a web server with no packages.</li>
-        <li><a href="https://nodejs.dev/learn/run-nodejs-scripts-from-the-command-line" target="_blank">Run Node.js scripts from the command line</a></li>
+        <li><a href="https://nodejs.dev/en/learn/run-nodejs-scripts-from-the-command-line" target="_blank">Run Node.js scripts from the command line</a></li>
       </ul>
 
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