Blaise Aguera y Arcas reveals two innovative technologies: Seadragon and Photosynth. Both are about how we and our computers mutually produce, consume and interact with visual information. Both technologies are also suggestive of sweeping changes in our "ÃÂvisual ecosystem"ÃÂ over the next several years. The prerequisites for these changes - ÃÂinexpensive CCDs, multiresolution, powerful computer vision algorithms, better bandwidth and processing power, graphics acceleration - ÃÂhave been steadily building up for many years. Here we will explore what can happen when these new capabilities converge with the collective effects of Web 2.0.