Attached Link: http://www.templetons.com/brad/copymyths.html

Riddokun, You need to seek permission before using copyrighted artwork or corporate logos. This from Brad Templetons "10 Big Myths of Copyright Explained"... " "#9. It doesn't hurt anybody -- in fact it's free advertising." It's up to the owner to decide if they want the free ads or not. If they want them, they will be sure to contact you. Don't rationalize whether it hurts the owner or not, ask them. Usually that's not too hard to do."