Debian is a Linux distribution, which is preffered for desktop machines, but it's been becoming more popular as a server OS during the last couple of years too. It's really dependable and protected, because fixes are released within a couple of days after a problem is discovered. Debian has a large support community, so if you have any kind of questions or problems with the OS or with any of the 30,000+ packages it comes with, you're able to contact the developers right away through electronic mail using special e-mail lists and receive a response in 15-20 minutes. The Debian community provides the best level of support possible, because all of your questions will be handled by the very same people who made Debian in the first place, so they have a thorough knowledge of how their system functions. As the Operating System is free to use and distribute, no license charges will be included with your web hosting fees and you'll be able to customize the program code files and any other software which you install with no restrictions, so as to optimize the software environment for your Internet sites. What's more, Debian performs very well on any hardware, because it is light and quick and does not require a lot of memory.