diff --git a/README.md b/README.md
index a60b7a0..aa1eec0 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # EventMapper
 
-EventMapper, an easily-deployable, nearly-static digital guide application made in JavaScript.
+EventMapper, a lightweight (hopefully), easily-deployable, nearly-static digital mapping application made for mobile in JavaScript.
 
 ## Specifications
 
@@ -11,6 +11,7 @@ EventMapper, an easily-deployable, nearly-static digital guide application made
 /rooms
   [FLOOR].json
 floors.json
+tags.json
 ```
 
 ### Floor
@@ -43,6 +44,7 @@ This object gets represented in the app as a map poly.
     [x, y], // An array of vertex positions.
     ...
   ],
+  "tags": ["[ARRAY", "OF", "TAG", "IDS]"],
   "lang": {
     "[IETF LANGUAGE TAG]": {
       "name": "[SINGLE-LINE STRING]",
@@ -55,7 +57,7 @@ This object gets represented in the app as a map poly.
 This will be stored in an array in `rooms/[FLOOR].json` to be accessed by clients.
 
 ### Event
-Used to represent a point in time when an activity or festivity happens. It is a child to both a [Floor](#floor) and a [Room](#room), reflected in its ID.
+Used to represent a point in time when an activity happens. It is a child to both a [Floor](#floor) and a [Room](#room), reflected in its ID.
 ```json
 {
   "id": "[FLOOR]_[ROOM]_[EVENT ID]",
@@ -63,13 +65,35 @@ Used to represent a point in time when an activity or festivity happens. It is a
     "start": "[ISO 8601 DATE]",
     "end": "[ISO 8601 DATE]"
   },
+  "tags": ["[ARRAY", "OF", "TAG", "IDS]"],
   "lang": {
     "[IETF LANGUAGE TAG]": {
       "name": "[SINGLE-LINE STRING]",
       "description": "[MULTI-LINE STRING]",
-      "url": "[URL]"
+      "host": "[HOST NAME (OPTIONAL)]"
     }
   }
 }
 ```
-This will be stored in an array in `events/[FLOOR].json` to be accessed by clients.
\ No newline at end of file
+This will be stored in an array in `events/[FLOOR].json` to be accessed by clients.
+
+### Tag
+Used to represent a tag that can be applied by ID to a Room or Event.
+This object gets represented in the app as a searchable tag chip.
+`radiogroup` can be used to un-toggle other tags when this one is selected.
+`show` can be used to hide the tag from search completely.
+```json
+{
+  "id": "[FLOOR ID]",
+  "radiogroup": "[GROUP ID]",
+  "show": <boolean>,
+  "lang": {
+    "[IETF LANGUAGE TAG]": {
+      "name": "[SHORT SINGLE-LINE STRING]",
+      "shortName": "[INITIALS OF NAME]",
+      "description": "[SINGLE-LINE STRING]"
+    }
+  }
+}
+```
+This will be stored in an array in `tags.json` to be accessed by clients.
\ No newline at end of file