engasm89

The plugin is easy to use and it has a simple, user-friendly interface. 
It is also highly configurable, so you can customize it to meet your specific needs. 
The WordPress External Link Redirection plugin is free. 
It can help you triple your income from your ads by showing people more ads when they visit external links inside your articles or pages

External Link Redirection

The WordPress External Link Redirection plugin allows you to manage your site's external links and forward people to a waiting page with ads to m …

jstar198

You know how <code>target="_blank"</code> is invalid in XHTML strict? Well, this plugin uses a Javascript hack to get around this. The code was originally taken from this thread I came across: http://www.webmasterworld.com/forum21/11165.htm
For posts/pages, the plugin will automatically captures any <code>target="_blank"</code>‘s inserted by the WP editor and modifies them to keep the page XHTML Strict valid. Then some small Javascript is inserted into each page which re-inserts <code>target="_blank"</code> so that the functionality is restored after your page has been validated!
For non-post/page content (eg templates/widgets), simply give your outbound links a class name of <code>external</code>, and the rest will be done automatically while keeping your page XHTML valid.
<h3>To Do</h3>
Future things I plan to add:
<ul>
<li>Integration into WP edit page to allow use of plugin without manually editing HTML.</li>
</ul>

External Linker

Allows you to get around using target="_blank" by converting all your outbound links using Javascript.

External Link Redirection vs External Linker