which as far as I know are freely available
If by "freely" you mean the circles posted them on their website for others to download and that it doesn't cost money for you to obtain, then maybe. I know some circles do that, but I'm pretty sure most circles sell their works.
If by "freely" you mean you can easily obtain a copy through magnet links, err...
Either way, even if it's free, it's still copyright material, and it really depends on your rights and their rights.
Some people get really disappointed when others are using their work, but then again there are people that don't mind the free advertising.
This post has been edited by Tsukihime: May 21 2012, 09:16 PM