There are hundreds (at least!) of different Linux-based operating systems. Most people will be familiar with some of the big names – distributions like Ubuntu, Red Hat Enterprise Linux, Debian and Mandriva. Most of the well-known Linux distros are designed to be used as general purpose desktop operating systems or installed on servers. But beyond these distros are hundreds of others either designed to appeal to very specific audiences or to fulfill the somewhat niche needs of some users. We rounded up some of the most interesting Linux distros out there that you might not have heard of.