diff --git a/pages/fulldocs.twitter.zoomable_ui.md b/pages/fulldocs.twitter.zoomable_ui.md
index a099ba0..2dfa5ee 100644
--- a/pages/fulldocs.twitter.zoomable_ui.md
+++ b/pages/fulldocs.twitter.zoomable_ui.md
@@ -2,6 +2,14 @@ https://twitter.com/rsnous/status/1360841991383179266
 
 > would it be right to say that "zoomable user interface" is 1. a complete success for maps and 2. a complete failure everywhere else? (if so, why?)
 
+- https://www.youtube.com/watch?v=QOzmX2WpPZY
+
+- https://blogs.harvard.edu/sj/2012/03/14/britannica-goes-out-of-print/
+
+
+
+
+
 # Omar Rizwan on Twitter
 
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