diff --git a/agora pkg chapter.md b/agora pkg chapter.md
index 983d077e2..cf532b80b 100644
--- a/agora pkg chapter.md	
+++ b/agora pkg chapter.md	
@@ -79,7 +79,7 @@ This project is of very large scope and might make use of non standard terminolo
 - [[Stoa]]: a repository of resources maintained by a group over time.
 - [[Bridge]]: a device or process connecting contexts, applying to both nodes and repositories.
 - [[Siphon]]: a bridge which exploits a gradient.
-- [[Commons]]: as per [[Elinor Ostrom]], [[Silke Helfrich]], [[David Bollier]].
+- [[Commons]]: a [[social organism]] or [[social system]] provisioned and maintained by a community of practice. As per [[Elinor Ostrom]], [[Silke Helfrich]], [[David Bollier]] et al.
 
 # Principles