[jamesgeck0]

There are some usability concerns with your implementation.

1) A 24x20 arrow is a tiny target compared to using a scroll wheel anywhere on the page. Scroll bars are also an infinitely wide target when the window is maximized. Fitts' Law and all that.

2) Scrolling requires a lower cognitive load on the user because they don't have to make a decision about turning a page and having everything they're looking at vanish. http://www.useit.com/alertbox/scrolling-attention.html

3) This one is just a bug. I had to reload Skimmer because the first time it came up the pages would not turn. The animation would play, then it would jump back to the first page. Not all the little article squares were loaded, so that may have had something to do with it. Opera 11.50 on Vista with 80% zoom.

4) Not scrolling, but navigation-related. The site doesn't play nicely with my back button. I had to click the close button in the upper left corner of the screen instead of clicking the back button. Confusing.

[isleyaardvark]

With your #1, for many people the time to target is instantaneous with a scroll wheel or trackpad. They just scroll without having to search for a target. The time to target is essentially zero, so any sort of control on the page will inevitably be slower.