Idea: Shortcuts to more folders, choose which to use?

Hi, I'm quite a fan of this site and everything you can get here. It is really awesome to be able to bring my apps with me wherever I go. But I was wondering if something else could be added. You know about those folder shortcuts on the sidebar? Is it possible to change those to link to other folders, or subfolders the way the Windows Start menu has it? That would be a bit more useful to me, since I'm more organized than some.

THANKS!