Some links on the topic:

http://webcenter.petplace.aol.com/ar...asp?artID=3215

"Do Not use Q-tips or any other objects in the ear canal. This can push the dirt further into the ear canal leading to more serious problems for your dog. It is safest to only clean the part of the ear that you can visually see."
http://www.indulgeyourpet.com/cleaningears.shtml

http://www.cybercanine.com/earcare.htm

http://shop.store.yahoo.com/sniffbut...rcleaning.html