diff --git a/_includes/head.html b/_includes/head.html
index f4794f2..0dc6087 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -25,4 +25,24 @@
 
   <!-- RSS -->
   <link rel="alternate" type="application/atom+xml" title="{{ site.title }} Feed" href="{{ site.baseurl }}feed.xml">
+
+  {% if page.category == "posts" %}
+    <!-- Twitter -->
+    <meta name="twitter:card" content="summary">
+    <meta name="twitter:site" content="@nifoc_">
+    <meta name="twitter:title" content="{{ page.title }}">
+    <meta name="twitter:description" content="{{ page.description }}">
+    <meta name="twitter:url" content="{{ site.url }}{{ page.url }}">
+
+    <!-- Facebook -->
+    <meta property="og:type" content="website">
+    <meta property="og:site_name" content="{{ site.title }}">
+    <meta property="og:title" content="{{ page.title }}">
+    <meta property="og:description" content="{{ page.description }}">
+    <meta property="og:url" content="{{ site.url }}{{ page.url }}">
+
+    <!-- Schema.org -->
+    <meta itemprop="name" content="{{ page.title }}">
+    <meta itemprop="description" content="{{ page.description }}">
+  {% endif %}
 </head>