The scrollbar is completely absent in Firefox. I think this is the first time I've seen long-form content with zero visual indication where I currently am in the document. Crazy.
Edit: Actually the scroll-bar is there, but it's nearly impossible to see because of the low contrast with the background. I guess I can blame my user agent for this one.
I really, really hate the modern trend of scrollbar design. I guess it makes some amount of sense if you're aiming for a mobile phone factor, where real estate is somewhat limited, but changing the scrollbar from a widget that lives functionally outside of the content it is scrolling to a translucent show-only-on-hover widget that overlays the content (and can thus become functionally invisible if the content is just the wrong color) is a real step backwards in UI design.