diff --git a/index.md b/index.md
index 0039377b2..ee474cbf1 100644
--- a/index.md
+++ b/index.md
@@ -11,6 +11,9 @@ An introductory course in theoretical computer science, aimed at giving students
 - [Ed](https://edstem.org/us/courses/57495/discussion/)
 - [Canvas](https://canvas.harvard.edu/courses/136155)
 - [Github](https://github.com/Harvard-CS-120/cs120)
+- [Gradescope](https://www.gradescope.com/courses/846790)
+- [Instructions for Sender/Receiver Exercises](./fall2024/sre/sre-instructions.pdf)
+- [Instructions for Sender/Receiver Exercises (Extension School](./fall2024/sre/sre-instructions-ext.pdf)
 - [Course Preview Video](https://harvard.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=cd2ec5c8-5f47-45a8-927a-b149008cd981)