diff --git a/inc/tweaks.php b/inc/tweaks.php
index 1900ef39..964ac212 100644
--- a/inc/tweaks.php
+++ b/inc/tweaks.php
@@ -25,6 +25,10 @@ add_filter( 'wp_page_menu_args', '_s_page_menu_args' );
  * @since _s 1.0
  */
 function _s_body_classes( $classes ) {
+	// If this isn't a post or a page we'll add the convenient .indexed class
+	if ( ! is_singular() ) {
+		$classes[] = 'indexed';
+	}
 	// Adds a class of single-author to blogs with only 1 published author
 	if ( is_multi_author() ) {
 		$classes[] = 'group-blog';
diff --git a/style.css b/style.css
index b6f354f2..efb98567 100644
--- a/style.css
+++ b/style.css
@@ -402,6 +402,12 @@ a:active {
 .hentry {
 	margin: 0 0 1.5em;
 }
+.indexed .byline {
+	display: none;
+}
+.group-blog .byline {
+	display: inline;
+}
 .entry-content,
 .entry-summary {
 	margin: 1.5em 0 0;