diff --git a/README b/README
index 06df001..8d7e702 100644
--- a/README
+++ b/README
@@ -13,3 +13,5 @@ This is an early attempt at a Wig-Wug simulator.  I've not had much time to test
         * Tell me if you manage to break it
     * Draw a new map (see data/maps/boxed_in.txt for the format)
     * Send feedback:  james@grayproductions.net
+
+Please don't share diggers or strategies before the meeting, but feel free to share any other materials (like maps).