I combine that with Greasemonkey on a per-site basis. The following script, slightly modified per-site, can make it so the page only displays the content area. No navigation, no side-bar ads, nothing but the content. Combined with Stylish to style and center the content, remove images, make the typography easier to read, and fix contrast issues/href colors. I use it for practically all news/media sites to make my reading experiences more enjoyable.

It's like my own personal "Readable" or whatever the Safari add-on / that-one-site is called. :)

    document.body.innerHTML=document.getElementById('content').innerHTML;