This is a really easy to add Adsense into your Thesis blog sidebar without manually doing it or using a plugin.
Just put this code in your custom_functions.php
[php]
function adsence_code() { ?>
<div id="adsence">
//your adsence code is here
</div>
<?php }
add_action(‘thesis_hook_after_multimedia_box’, ‘adsence_code’);
[/php]