Seen the DiggBar on Digg.com? Add a similar feature to your WordPress blog by creating a navigation bar for all external links outside of blog. Also
To make sure the The WordPress Bar is working, create and publish a post with an external link. View that post and click on the external link. You should now be viewing the link with the The WordPress Bar along the top.
If you have any issues or suggestions for the The WordPress Bar, please post them here: The WordPress Bar Support