There are over 13 million other AudioGalaxy Satellite users out there, ensuring a vast array of files ripe for the picking. Unfortunately the tool is so popular that it's not always possible for a new user to establish him or herself with the AudioGalaxy server on the first few attempts. Satellite is not a full-scale file-sharing tool -- it's specifically for MP3s. But it uses a minimum of memory and is easy on your CPU. Like some of the other tools in this list, downloads that are interrupted can be resumed later. Try using it and see why millions already do.