I've experimented with stitched panoramic images in the past, but with very limited success. In case you don't already know, a stitched panorama is taking multiple, overlapping images and then using software to merge them into one, larger image. My new camera is already 10 megapixels, so once you start merging multiple images, they can get big quick! I use a fixed 50mm lens, which winds up being like a fixed 80mm on my crop sensor.
10 May 2013 - Just messing about with my new 40D, this was handheld and hurried, but man, Microsoft ICE did a fine job with the stitch! I don't often praise MS, but credit where credit is due - amazing. Image is 166 megapixel, comprised of 45 individual images stitched. View larger here or here.
11 May 2013 - Downtown Dallas as viewed from the Morton H Meyerson Symphony Center. Image is 215 megapixel, comprised of 45 images. View larger here. Here's another version, this time 176MP (not cropped). View Larger here.
16 May 2013 - Haslet, Texas, not sure what it is, I believe it is a wood-processing plant. Image is, sadly, 28.78MP - I had been shooting some test 360 degree panos with my camera set to "small" and I forgot to put it back. View larger here or download original here (18.6MB).
About these interactive images: I use two services (GigaPan and Zoom.it) to host them. I don't need help with the space/bandwidth, but they provide the zoomable interfaces and my current hosting provider doesn't support Zoomify (my previous and preferred method). Unfortunately, GigaPan tends to soften the images a lot in the upload process (presumably to save bandwidth) and Zoom.it overcompresses at full magnification. Since they are free services, I am not complaining, but this is why I make the full-size versions available for download on most images.