If you're a browsing fiend, check out Katiesoft's implemtation of IE (Windows required). It lets you break up your browsing window into up to four separate panes. You can resize them, drag-and-drop links from one to the other and lots of other stuff (apparently) that I haven't figured out yet. I'm not sure if I prefer it, but it is pretty interesting. You need at least 1024x768 resolution -- bigger would be better. At 1280xwhatever, this might be the shit.