diff --git a/_schedule/06-markup-and-markdown.md b/_schedule/06-markup-and-markdown.md
index 034a103..5c93e82 100755
--- a/_schedule/06-markup-and-markdown.md
+++ b/_schedule/06-markup-and-markdown.md
@@ -16,4 +16,5 @@ class_date: 2024-02-01
 
 - Visit some of the following older websites:
   - Some preserved Geo-Cities websites [https://geocities.restorativland.org/Area51/Shadowlands/](https://geocities.restorativland.org/Area51/Shadowlands/)
-  - Original Space Jam website (https://www.spacejam.com/1996/)[https://www.spacejam.com/1996/]
\ No newline at end of file
+  - Original Space Jam website (https://www.spacejam.com/1996/)[https://www.spacejam.com/1996/]
+  - Humanist Discussion Group archives (https://humanist.kdl.kcl.ac.uk/)[https://humanist.kdl.kcl.ac.uk/]
\ No newline at end of file