diff --git a/README.md b/README.md
index 4231e65..f045d8a 100644
--- a/README.md
+++ b/README.md
@@ -143,7 +143,7 @@ entirely via deploy labels on the Caddy service in this recipe's `compose.yml`.
 
 A [Bluesky PDS](https://github.com/bluesky-social/pds) (Personal Data Server)
 is a self-hosted server for ATProto. This is a co-op cloud recipe for a PDS 
-as implemented by bluesky, although other pds implementations exist such as [rsky-pds](https://github.com/blacksky-algorithms/rsky/tree/main/rsky-pds).
+as implemented by bluesky, although other pds implementations exist such as [cocoon](https://tangled.org/hailey.at/cocoon), [tranquil-pds](https://tangled.org/tranquil.farm/tranquil-pds), [pegasus](https://tangled.org/futur.blue/pegasus) and [rsky-pds](https://github.com/blacksky-algorithms/rsky/tree/main/rsky-pds).
 
 # ❃