Video-sharing sites such as YouTube have changed the way we consume and create video, and now there are several pocket-sized camcorders built specifically for the task. We recently pitted five high-definition pocketable camcorders from Pure Digital, Creative Labs, Sony, and Kodak against one another in standardized wide-angle, normal-lighting, low-lighting, and audio tests. Shortly after we wrapped up testing, Pure Digital announced yet another model, the Flip UltraHD, which performed better than many of the camcorders in our tests. Although each of these camcorders is devoted to capturing and uploading decent-looking video to the Web in the easiest way possible, each one also has both its major advantages and its key drawbacks. Here’s an up-close look at the ultraportable HD camcorders we’ve tested.