Are you making use of your 404 page?
 

When visitors arrive at your site following a link to a page that maybe you have deleted or they have typed in incorrectly, they will normally end up on a
404 page - = error page does not exist.

Did you know you can utilise this?

In wordpress bloggs especially, you can edit your 404 page template from the theme editor and add anything you wish.

Here's an example http://www.2nd-income.biz/blog/test

make use of the space and try to keep your visitor.

Graham