diff --git a/README.md b/README.md
index 549cd45..ab474d3 100755
--- a/README.md
+++ b/README.md
@@ -1272,6 +1272,8 @@ Pricing Theory I / Applied Probability for Mathematical Finance - University of
 - [ETH Zürich AI in the Sciences and Engineering](https://www.youtube.com/playlist?list=PLJkYEExhe7rYFkBIB2U5pf_RWzYnFLj7r)
 - [Introduction to GIS Programming (Fall 2024) - Open Geospatial Solutions](https://www.youtube.com/playlist?list=PLAxJ4-o7ZoPfb18kNe2luWX9xKg1233i9)
 - [UC Berkeley EE 120 Signals and Systems spring 2019, by Murat Arcak](https://www.youtube.com/playlist?list=PLIygTcviGPKCFASN_5cR04KUST-G97bb-)
+- [Stanford EE 102 spring 1999, Introduction to Signals and Systems, by Stephen Boyd](https://www.youtube.com/playlist?list=PLpGHT1n4-mAvjbBio7D_qpIN4bZqOOOST)
 - [Stanford EE 376a winter 2011, Information Theory, by Thomas Cover](https://www.youtube.com/user/classxteam/playlists)
+- [MIT RES.6.007 Signals and Systems, 1987 - MIT](https://www.youtube.com/playlist?list=PL41692B571DD0AF9B)
 - [Purdue ME 597 Distributed Energy Resources Spring 2024, by Kevin J. Kircher](https://www.youtube.com/playlist?list=PLcZDMdEnS08l_z5LVDQrEcyFrBsHlKVXd)