Notice something about the following link? (It should hover above the page and open in a colorbox popup instead of a new window or tab.)
Source: Opening Links in Colorbox
The directions for how to do it are there. Cool beans.
Use it when you want your reader to see something you’ve linked too but you don’t want them to leave your site entirely in a new tab or window.
Oh, you’ll need to activate the jQuery Colorbox plugin to enable the jQuery Colorbox Settings link in your dashboard.