[Barty]

Scrolling is better in some instances, e.g., text interspersed with lots of images. In that case, you either break up the image with pagination, or do you display it on next page and leave too much white space. But that is rare.

Pagination wins in most cases, as it takes little to no effort to track where you are.

Especially on a touch device, where you don't have discrete pageup/pagedn keys but imprecise flick scrolling instead.

When I read long articles on the iPad using something like readitlater or instapaper, I prefer to use pagination if the app supports it.

I remember there was an app that let me do both -- flick scroll and pagination. I thought it was cool at first, but it just ended up being unpredictable and troublesome.