diff --git a/README.md b/README.md
index 5b63727..1e47fae 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,8 @@ See the [website](https://waterwaymap.org).
 
 * [Should river lines be mapped through lakes, estuaries, gulfs, and other large water bodies?](https://community.openstreetmap.org/t/should-river-lines-be-mapped-through-lakes-estuaries-gulfs-and-other-large-water-bodies/104438) _(Oct. 2023)_
 * [Properly mapping dry washes](https://community.openstreetmap.org/t/properly-mapping-dry-washes/108437) _(Jan. 2024)_
+* [Is there a common tag for underground infiltrated watercourses?](https://community.openstreetmap.org/t/is-there-a-common-tag-for-underground-infiltrated-watercourses/111558) _(Apr. 2024)_
+* All posts [tagged `#waterwaymaporg` on the OSM Community Forum](https://community.openstreetmap.org/tag/waterwaymaporg).
 
 ## Loops