Index: wp-admin/press-this.php
===================================================================
--- wp-admin/press-this.php	(revision 17525)
+++ wp-admin/press-this.php	(working copy)
@@ -621,8 +621,11 @@
 			<div id="quicktags"></div>
 			<div class="editor-container">
 				<textarea name="content" id="content" style="width:100%;" class="theEditor" rows="15"><?php
-					if ( $selection )
-						echo wp_richedit_pre($selection);
++					if ( $selection && $url ) {
++						echo wp_richedit_pre( sprintf ( "<blockquote class="press-this-selection">cite='%s'>%s</blockquote>", esc_url( $url ), $selection ) );
++					} else if ( $selection ) {
++						echo wp_richedit_pre( sprintf ( "<blockquote>%s</blockquote>", $selection ) );
++					}
 					if ( $url ) {
 						echo '<p>';
 						if ( $selection )