diff --git a/extensions/readme.md b/extensions/readme.md
index ddf2baafa..c3c7998e4 100644
--- a/extensions/readme.md
+++ b/extensions/readme.md
@@ -2,24 +2,25 @@
 
 Use subfolders under the `extensions` folder to house extensions to the final unified hosts file.
 
-Currently this repo includes a `porn` extension which you can optionally add to your final unified file.
+Currently this repo includes two extensions: `social` for common social media sites, and `porn` for porn sites.  You can optionally add either or both to your final unified file.
 
 Here's a sample call to include the `porn` extension.
 
 **Using Python 3**:
 
-    python3 updateHostsFile.py --extensions porn
+    python3 updateHostsFile.py --extensions porn social
 
 or, in short form:
 
-    python3 updateHostsFile.py -e porn
+    python3 updateHostsFile.py -e porn social
 
 **Using Python 2.7**:
 
-    python updateHostsFile.py --extensions porn
+    python updateHostsFile.py --extensions porn social
 
 or, in short form:
 
-    python updateHostsFile.py -e porn
+    python updateHostsFile.py -e porn social
+
 
 More built-in extensions are coming soon.