diff --git a/.obsidian-git-data b/.obsidian-git-data
index b5cdd0656..b6b00a7c5 100644
--- a/.obsidian-git-data
+++ b/.obsidian-git-data
@@ -1,2 +1,2 @@
-Mon Jun 21 2021 20:05:06 GMT+0200 (Central European Summer Time)
-Mon Jun 21 2021 20:04:06 GMT+0200 (Central European Summer Time)
\ No newline at end of file
+Mon Jun 21 2021 20:06:06 GMT+0200 (Central European Summer Time)
+Mon Jun 21 2021 20:05:06 GMT+0200 (Central European Summer Time)
\ No newline at end of file
diff --git a/discussing social annotation and digital literacies.md b/discussing social annotation and digital literacies.md
index db1c40e83..74ef8f4c9 100644
--- a/discussing social annotation and digital literacies.md	
+++ b/discussing social annotation and digital literacies.md	
@@ -122,4 +122,7 @@ What's your favourite annotation tool?
 	- advantages to do this behind a login wall (so in a silo?)
 - [[paul schacht]]
 	- [[google docs]] can work
-	- whatever platform is b
\ No newline at end of file
+	- whatever platform is being used, the important thing is for students to have control over their comments
+		- [[lms]] might support that
+		- [[hypothes.is]] supports group-only access
+		- there can be some 'showcase' posts, but not shared by default (I missed if this referred to a specific tool)
\ No newline at end of file