If you use pretty much any browser except IE 6 (more on that later) when you visit this site, you've probably noticed that the dark-grey sidebar scrolls with you just until the banner and menu are off the page, and then locks itself into position or "sticks". When you scroll back to the top, if the menu and/or banner need to be seen again, the sidebar politely resumes its normal scrolling duties. Go ahead, try it now, I'll wait. Fun isn't it? I've had a number of people comment on that, so I thought I would outline how I accomplished it.