Left to right, not up and down

I'm starting to wonder if the next big trend in web publishing is to package content in a left-to-right, scrolling style, instead of the traditional scroll-down type display you normally see when reading stuff on the web. Here's a good example of that at CanopyCanopyCanopy. I've noticed that one of my favorite moto blogs, Hell for Leather, does something similar with certain of their features.