By default, the post list in your WordPress dashboard, displays the comment count, but no trackback & pingback count. Here is a cool hack to add pingbacks/trackbacks count as well.

Simply paste the code below in your functions.php file. Once saved, your pingback/trackback count is displayed within admin post columns.

 function commentCount($type = 'comments'){ 	if($type == 'trackbacks'): 		$typeSql = 'comment_type = "trackback"'; 		$oneText = 'One :trackback'; 		$moreText = '% :trackbacks'; 		$noneText = 'No :trackbacks'; 	elseif($type == 'pingbacks'): 		$typeSql = 'comment_type = "pingback"'; 		$oneText = 'One :pingback'; 		$moreText = '% :pingbacks'; 		$noneText = 'No :pingbacks'; 	endif; 	global $wpdb;     $result = $wpdb->get_var('         SELECT             COUNT(comment_ID)         FROM             '.$wpdb->comments.'         WHERE             '.$typeSql.' AND             comment_approved="1" AND             comment_post_ID= '.get_the_ID()     ); 	if($result == 0): 		echo str_replace('%', $result, $noneText); 	elseif($result == 1): 		echo str_replace('%', $result, $oneText); 	elseif($result > 1): 		echo str_replace('%', $result, $moreText); 	endif; } add_filter('manage_posts_columns', 'posts_columns_counts', 1); add_action('manage_posts_custom_column', 'posts_custom_columns_counts', 1, 2); function posts_columns_counts($defaults){     $defaults['wps_post_counts'] = __('Counts');     return $defaults; } function posts_custom_columns_counts($column_name, $id){ 	if($column_name === 'wps_post_counts'){ 		commentCount('trackbacks'); echo "<br />"; 		commentCount('pingbacks');           } } 

Thanks to InstantShift for this great piece of code!