Man, oracleguy, I was all ready to say that and then I read your post...
You can always quote information and details that are freely available, but yes put a note when and where you got it. There is nothing they can do if you put the data together if its available online (and there is no disclaimer against doing this).
I would also consider removing someone from the list who might be upset if they really pushed it. No reason to put this into some court room. I would think you could find another person to pick on in their place