Addtothis is a wordpress plugin for improving your blog traffic. What you want to do is just activate this plugin. This plugin automatically add user option / shortcut for adding a particular post in delicious , stumble , feed readers and technorati
Download the zip file and unzip into your wp-content/plugins directory. Go to your administrative control panel / plugin menu and click on the activate link.
The plugin is also available from wordpress official website: http://wordpress.org/extend/plugins/addtothis/
See sample post after activating this plugin:
Comment your opinion / queries regarding this plugin. If you want more additions to this plugin, please feel free to mail : firstname.lastname@example.org or comment to this post.