I don't know that they're focusing on large sized sites. Maybe "smart sized" sites. If you're creating hundreds of pages of thin content tha'ts only optimized to bring in the views, that will probably get your site clocked by Panda. If your hundreds of pages are relevant and good quality, though, then that's okay.
"But eHow," you say. I say, forget eHow. Strike your own path and focus on good content and, yes, promote it to generate interest.