diff --git a/components/opengraph.php b/components/opengraph.php
new file mode 100644
index 0000000..23f3c83
--- /dev/null
+++ b/components/opengraph.php
@@ -0,0 +1,15 @@
+<?php if ( is_single() ) { ?>
+  <?php if(!has_post_thumbnail( $post->ID )) {
+    $image = get_template_directory_uri() . "/img/default-preview.png";
+  } else {
+    $image = get_the_post_thumbnail_url();
+  }
+  ?>
+	  
+  <meta property='og:url' content='<?php echo get_permalink(); ?>'/>
+  <meta property='og:type' content='article'/>
+  <meta property='og:title' content='<?php wp_title(''); ?>'/>
+  <meta property='og:site_name' content='<?php bloginfo('name'); ?>'/>
+  <meta property='og:image' content='<?php echo $image ?>'/>
+  <meta property='og:description' content='<?php the_excerpt(); ?>'/>
+<?php } ?>
diff --git a/header.php b/header.php
index 39ea18a..b400d51 100644
--- a/header.php
+++ b/header.php
@@ -11,6 +11,7 @@
 	<?php endif; ?>
 
   <?php wp_head(); ?>
+  <?php include(TEMPLATEPATH . '/components/opengraph.php'); ?>
 
 		<!-- mon icon -->
 	<link rel="shortcut icon" href="img/favicon.png">
diff --git a/img/default-preview.png b/img/default-preview.png
new file mode 100644
index 0000000..ad7f718
Binary files /dev/null and b/img/default-preview.png differ