A lot is made about the use of unpaid interns in the media. Then there is the whole 'Huffington Post' model of expecting people to want to write for free, but there are few unpaid jobs in the media world whose non-cash rewards are justified quite like these editorial posts from Christian organisation WEC:
Each ad includes the line:
"This position is non-salaried as all WEC personnel look to God to provide their personal needs."
There are probably a few freelance writers out there able to associate with the patience that might require.