Yep. But lets not get hung up on the "Not for Profit" that's just the organisation, you are perfectly entitled to charge for your work. It's a much kinder and enriching way to license your work. One that allows you, your audience and other creative people to use and share your work without fear of infringement.

I'm no expert just a believer in Creative Commons. In fact for a lot of things I would prefer Public Domain but I suspect that would be too radical for you. :-D