The best source for in-depth digital camera reviews is Digital Photography Review. They have a useful buying guide, where you can specify exactly what type features you want in a camera. The reviews are often ten Web pages or more in length, and feature product views, sample images, features discussions and evaluations on everything from shutter lag to movie recording to button placement, leaving virtually no stone unturned.
If you are just looking for a quick overview of top-rated digital camera, check out Consumer Search. They compile recommendations from a number of different review sources, and offer “Quick Picks”.