Nice avatar, Interbane.
We currently have lots of donated books that need to be advertised in the sidebars so making the scroll window taller right now is not practical. But it is a fantastic idea and one we'll make happen soon.
I'm going to stop advertising donated book directly on our sidebars for a full 30 days as they take up too much space. I might add them for a week or two and then place them on our
Featured Book Suggestions page. The sidebars are needed more for paid advertising and useful features such as the scrolling "Recent Topics" window.