Lavamus is an online music service that has several associated websites, or "network" sites, that all utilize Lavamus resources in order to operate. Some other well known websites that are part of the Lavamus network are JustMusicStore and iSOUND.be. One good feature of using sites on the Lavamus network is that you can use the same account and balance to download from all of these sites - meaning if the site you signed up on goes down or has some kind of problem, you can simply switch to a different site using your same login information. But what are the differences between these sites, and are there even more of them out there?