I upvoted because at its core, the plurality approach is a fundamentally good idea. However, two caveats. First, beliefs aren't on a spectrum, so get several opinions, not just two. Second, diametrically imposed still shouldn't mean extremist; you'll get higher signal:noise ratio in more moderate sources.

That doesn't work either. One, there's the assumption that you're two opposed news sites are "really" opposed. Are Fox News and MSNBC diametrically opposed? Amy Goodman would disagree. I could also read the Socialist Worker Magazine and the American Enterprise Institute's newsletter, but I don't know what conclusions I would draw.

The issue isn't that all media organizations are biased, it's really that I am biased. I think the world exists in a certain way and the news that doesn't agree with that or fails to convince me to change the way I think, well then that news source is clearly biased.

Of course - trying to line up in the middle of two viewpoints can have issues itself. ( http://xkcd.com/690/ )

Possibly the trick is to discard the outliers first.