diff --git a/README.md b/README.md
index 0a93dcd..9a2643d 100644
--- a/README.md
+++ b/README.md
@@ -132,7 +132,7 @@
         CS50</a> An introduction to the intellectual enterprises of computer science and the art of programming by
       Harvard University.
     </li>
-  </ol>
+        </ol>
 </details>
 
 <details open>
@@ -225,6 +225,9 @@
         <a href="https://www.codeforhunger.com/" target="blank">codeforhunger</a> - Learn to code. Learn coding from basics with examples and their solutions. learn code with projects in C.
         including
       </li>
+      <li>
+      <a href="https://www.interviewbit.com/practice/" target="blank">InterviewBit</a> A site that gamifies the experience of practicing for interviews and includes lots of sample problems, programming and company-specific interview questions, mock interviews and more. 
+    </li>
     </ol>
   </details>
   <details open>
@@ -552,6 +555,9 @@
         <a href="https://codesandbox.io/" target="blank">CodeSandbox.io</a> - Founded in 2017 by Ives van Hoorne and Bas
         Buursma, our mission is to make web development faster. By removing complexity we enable web developers to be
         more productive. By simplifying collaboration we make it easier for teams to work on code together.
+      </li>
+         <li>
+        <a href="https://www.interviewbit.com/online-c-compiler/" target="blank">InterviewBit</a> - Practice and execute C programs with our online compiler(supports gcc c compiler).
       </li>
     </ol>
   </details>