Take the name of the bookmark link as title - when not set.

tumblr/tumblr.php

@@ -168,6 +168,11 @@ function tumblr_send(&$a,&$b) {
 		if(count($tag_arr))
 			$tags = implode(',',$tag_arr);
 
+		if ($b['title'] == '') {
+			// Take the description from the bookmark
+			if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches))
+				$b['title'] = $matches[2];
+		}
 
 		$params = array(
 			'email' => $tmbl_username,