diff --git a/objects/blog/definition.json b/objects/blog/definition.json
index 97980b6..88ccceb 100644
--- a/objects/blog/definition.json
+++ b/objects/blog/definition.json
@@ -1,6 +1,10 @@
 {
   "requiredOneOf": [
-    "post"
+    "post",
+    "archive",
+    "url",
+    "link",
+    "attachment"
   ],
   "attributes": {
     "post": {
@@ -94,7 +98,7 @@
       "misp-attribute": "text"
     }
   },
-  "version": 13,
+  "version": 14,
   "description": "Blog post like Medium or WordPress.",
   "meta-category": "misc",
   "uuid": "1f165fc0-b158-498f-8bc8-6dc3d2822bb1",
diff --git a/objects/meme-image/definition.json b/objects/meme-image/definition.json
index edb88ec..06cb1a7 100644
--- a/objects/meme-image/definition.json
+++ b/objects/meme-image/definition.json
@@ -1,6 +1,7 @@
 {
   "requiredOneOf": [
     "attachment",
+    "archive",
     "document-text"
   ],
   "attributes": {
@@ -98,7 +99,7 @@
       "misp-attribute": "datetime"
     }
   },
-  "version": 6,
+  "version": 7,
   "description": "Object describing a meme (image).",
   "meta-category": "file",
   "uuid": "6f6c3b61-f085-475e-93df-2e2d9c2fb0f6",
diff --git a/objects/microblog/definition.json b/objects/microblog/definition.json
index 9594586..226c5eb 100644
--- a/objects/microblog/definition.json
+++ b/objects/microblog/definition.json
@@ -1,6 +1,10 @@
 {
   "requiredOneOf": [
-    "post"
+    "post",
+    "archive",
+    "url",
+    "link",
+    "attachment"
   ],
   "attributes": {
     "post": {
@@ -124,7 +128,7 @@
       "multiple": true
     }
   },
-  "version": 17,
+  "version": 18,
   "description": "Microblog post like a Twitter tweet or a post on a Facebook wall.",
   "meta-category": "misc",
   "uuid": "8ec8c911-ddbe-4f5b-895b-fbff70c42a60",
diff --git a/objects/news-agency/definition.json b/objects/news-agency/definition.json
index 9df81c2..438da8b 100644
--- a/objects/news-agency/definition.json
+++ b/objects/news-agency/definition.json
@@ -1,18 +1,23 @@
 {
   "requiredOneOf": [
     "name",
-    "alias"
+    "alias",
+    "archive",
+    "url",
+    "link",
+    "attachment"
   ],
   "attributes": {
     "name": {
       "description": "Name of the news agency.",
-      "disable_correlation": false,
+      "disable_correlation": true,
       "ui-priority": 100,
       "misp-attribute": "text"
     },
     "alias": {
       "description": "Alias of the news agency.",
       "ui-priority": 99,
+      "disable_correlation": true,
       "misp-attribute": "text",
       "multiple": true
     },
@@ -65,7 +70,7 @@
       "multiple": true
     }
   },
-  "version": 1,
+  "version": 2,
   "description": "News agencies compile news and disseminate news in bulk.",
   "meta-category": "misc",
   "uuid": "92b3f7fd-c4bc-42af-a73b-033ace439622",
diff --git a/objects/news-media/definition.json b/objects/news-media/definition.json
index 10bd39d..8a46926 100644
--- a/objects/news-media/definition.json
+++ b/objects/news-media/definition.json
@@ -1,21 +1,32 @@
 {
   "requiredOneOf": [
     "source",
-    "alias"
+    "alias",
+    "archive",
+    "content",
+    "url",
+    "link",
+    "attachment"
   ],
   "attributes": {
     "source": {
       "description": "Name of the news source.",
-      "disable_correlation": false,
+      "disable_correlation": true,
       "ui-priority": 100,
       "misp-attribute": "text"
     },
     "alias": {
       "description": "Alias of the news source.",
       "ui-priority": 99,
+      "disable_correlation": true,
       "misp-attribute": "text",
       "multiple": true
     },
+    "username": {
+      "description": "Username who posted the blog post.",
+      "ui-priority": 0,
+      "misp-attribute": "text"
+    },
     "content": {
       "description": "Raw content of the news.",
       "ui-priority": 1,
@@ -112,6 +123,18 @@
       "misp-attribute": "text",
       "multiple": true
     },
+    "embedded-link": {
+      "description": "Site linked by the blog post.",
+      "ui-priority": 0,
+      "misp-attribute": "url",
+      "multiple": true
+    },
+    "embedded-safe-link": {
+      "description": "Safe site linked by the blog post.",
+      "ui-priority": 0,
+      "misp-attribute": "link",
+      "multiple": true
+    },
     "e-mail": {
       "description": "Email address of the news source.",
       "ui-priority": 10,
@@ -119,8 +142,8 @@
       "multiple": true
     }
   },
-  "version": 1,
-  "description": "News media are forms of mass media deliverings news to the general public.",
+  "version": 2,
+  "description": "News media are forms of mass media delivering news to the general public.",
   "meta-category": "misc",
   "uuid": "691463c5-5302-4847-9bec-4c56ccfec677",
   "name": "news-media"