No problem as long as the site doesn't mind. I have had problems with one US distributor of German boats kits complaining that the shots from his site weren't to be used here. It was kind of odd to me as he was getting free advertising.
The part that I quoted from that one site bothered me. I'm far from a computer geek (we don't have to be one to be a Mod in here, good thing!) but I didn't like the idea of what it said or how I took it to read, that they had a right to hack into my 'puter to gather information as to what sites that I've visited. Protection on this thing I've got plenty of yet just the thought of it bothered me.