Holy grail == hold down a button and drag. Many web browsers already have this functionality (sort of) with middle-click. Forcing the user to navigate to some

Holy grail == hold down a button and drag. Many web browsers already have this functionality (sort of) with middle-click. Forcing the user to navigate to some tiny on-screen affordance which takes up screen real estate is a terrible design (except in the special case where the scroll bar is at the extreme edge of the screen). Mobile web browsers seem to get this right. Touch the element you want to scroll & drag it; an overlay pops up to show your relative location. Intuitive, easy, and doesn't take up screen real estate. Scroll wheels (especially Kensington's beautiful "Orbit" scroll rings on their trackballs) are pretty close to the mark too.