Nobody's going to argue that JPEG is the perfect image format. It can be severely lacking in quality, especially with higher levels of compression used. However, the small sizes it creates and the ubiquity of the format makes it the de facto for viewing photos, both online and off. A new group has promised an overhaul of the JPEG, offering similar quality levels, but with massively reduced file sizes. Dubbed JPEGmini the sample images they're providing offer a five-fold decrease in size.