diff --git a/README.md b/README.md
index 591affd..32bc793 100644
--- a/README.md
+++ b/README.md
@@ -323,6 +323,16 @@ The url for that feed is:  [https://noagendaassets.com/enc/pc20sandbox.xml](http
    - `bitrate` (optional) Encoding bitrate of media asset.
    - `title` (required) Alternate assets need a title since main title will apply to primary asset.
 
+<br>
+
+- **\<podcast:indexers>** + **\<podcast:block>[domain, bot or service slug]\</podcast:block>**
+
+   Channel (optional | single)
+
+   The "indexers" element is meant as a container for one or more `<podcast:block>` elements which send a signal to podcast aggregators whether they are allowed to pull and parse
+   this feed.  If the aggregator is listed as blocked, it should take that as a signal by the feed owner to not index/aggregate this feed.
+
+   *Note: this element needs a lot more discussion and work.  This is just a placeholder for discussion.
 
 <br><br>