diff -r f507feede89a -r 09a1c134465b web/wp-admin/includes/class-wp-links-list-table.php
--- a/web/wp-admin/includes/class-wp-links-list-table.php	Wed Dec 19 12:35:13 2012 -0800
+++ b/web/wp-admin/includes/class-wp-links-list-table.php	Wed Dec 19 17:46:52 2012 -0800
@@ -9,9 +9,10 @@
  */
 class WP_Links_List_Table extends WP_List_Table {
 
-	function __construct() {
+	function __construct( $args = array() ) {
 		parent::__construct( array(
 			'plural' => 'bookmarks',
+			'screen' => isset( $args['screen'] ) ? $args['screen'] : null,
 		) );
 	}
 
@@ -68,7 +69,7 @@
 				'orderby' => 'name',
 			);
 			wp_dropdown_categories( $dropdown_options );
-			submit_button( __( 'Filter' ), 'secondary', false, false, array( 'id' => 'post-query-submit' ) );
+			submit_button( __( 'Filter' ), 'button', false, false, array( 'id' => 'post-query-submit' ) );
 ?>
 		</div>
 <?php
@@ -128,8 +129,12 @@
 				$attributes = $class . $style;
 
 				switch ( $column_name ) {
-					case 'cb':
-						echo '<th scope="row" class="check-column"><input type="checkbox" name="linkcheck[]" value="'. esc_attr( $link->link_id ) .'" /></th>';
+					case 'cb': ?>
+						<th scope="row" class="check-column">
+							<label class="screen-reader-text" for="cb-select-<?php echo $link->link_id; ?>"><?php echo sprintf( __( 'Select %s' ), $link->link_name ); ?></label>
+							<input type="checkbox" name="linkcheck[]" id="cb-select-<?php echo $link->link_id; ?>" value="<?php echo esc_attr( $link->link_id ); ?>" />
+						</th>
+						<?php
 						break;
 
 					case 'name':