I actively promote elastic design, so the next step is elastic images. That is images that are proportional to your layout. So here is a little experiment. Apologies to RSS readers, I have yet to work out how not to send images via RSS. If you are on the site, see how the images adjusted to fill the space, on both the summary page and post page, by either dragging the browser window.
One the left is one of my favourite images I took early in my time as rock and roll photogragher, Tim Underwood of the Rosemary Beads in 1995. The photo on the right, was one of my last, Joe Algeri smashing his fake Rickenbacker in 1999. Between 1995 to 99 I went to a few hundred gigs and took some 15,000 photos using 35mm film and wrote reviews of most of those gigs for Bubblehead
My dark past out of the way, onto elastic design, if you change the size of the page, by either dragging your browser window or changing the font size. The photos remain proportional to the width of the page and font size (though with the use of SIFR you have to refresh the page to get the heading right). This is done by defining the image size in ems. I did that in the style sheet so that not matter which type of page you see the image on in this blog it will always fill the space.
The disadvantage, you are in the hands of browsers in the how the handled the resizing of the images, most do a good job, a few not so good. Plus you need to provide high quality images, for example the two used here are 40kb in size, if they were fixed size you could get away with 12kb images.