WordPress/wp-content/themes/twentyten/sidebar.php

		<div id="primary" class="widget-area">
			<ul class="xoxo">
<?php if ( !dynamic_sidebar('primary-widget-area') ) : // begin primary widget area ?>
			<li id="search" class="widget-container widget_search">
				<?php get_search_form(); ?>
			</li>

			<li id="archives" class="widget-container">
				<h3 class="widget-title"><?php _e('Archives', 'twentyten') ?></h3>
				<ul>
<?php wp_get_archives('type=monthly') ?>
				</ul>
			</li>

			<li id="meta" class="widget-container">
				<h3 class="widget-title"><?php _e('Meta', 'twentyten') ?></h3>
				<ul>
					<?php wp_register() ?>

					<li><?php wp_loginout() ?></li>
					<?php wp_meta() ?>

				</ul>
			</li>
<?php endif; // end primary widget area  ?>
			</ul>
		</div><!-- #primary .widget-area -->

<?php if ( is_active_sidebar('secondary-widget-area') ) : // Nothing here by default and design ?>
		<div id="secondary" class="widget-area">
			<ul class="xoxo">
				<?php dynamic_sidebar('secondary-widget-area'); ?>
			</ul>
		</div><!-- #secondary .widget-area -->
<?php endif; ?>