I’ve just updated my website to include a Creative Commons licence. This means I’m happy for people to copy my work (music and images) for free, modify them and otherwise distribute them, but not make money off them. Regarding the software I write, that’s a slightly different matter. It will be released under an Open Source licence, but I’m not yet sure which one.
I’ve not much else to say about this, many other people have written far more eruditely about the copyright/open source/creative commons thing than I ever could. But I realised that if I’m going to abide by the rules laid out by these organisations I had better say so on my site.