There's a noticeable Robin Hood spirit surround all of this - many servers charge for commercial web-site services, at the same time using part of the income to offer free space to private persons and voluntary or charitable organisations.
Apart from this many larger organisations - like universities and other networks - offer space for their own workers...
It's the same with the content - commercial companies may be charged a hefty sum for a professional design job, while individuals who would like to do it themselves can get free help from others who have followed the same path.
HOW DOES IT WORK?