Good posts and answers. Here is a quote I took from PopPhoto Magazine last month related to DoF.
Hyperfocal Distances: Changing with lens and aperture, the hyperfocal distance is the nearest focusing point that will produce sharpness at infinity -- in other words, the maximum depth of field that includes infinity. Lens depth-of-field scales help you set it: in manual focus, turn the focusing ring so the working aperture (e.g., f11) on the depth-of-field scale lines up with infinity on the focusing scale (the one on the lens that you can rotate with your hand). Now, every distance from the opposite working aperture to infinity will be sharp." (I added the stuff in parentheses.)

In your Depth of Field post, could you help with the following, please? On the old lenses I used with film cameras, I could follow those directions, but on my new lenses for my digital camera, I can't because the lenses don't have the same aperture display on the rings. So, how do I set the hyperfocal distance using my digital with a zoom lens?

Thanks.