Intellectual Property Guidelines

http://delicious.com/akarrer/prospeaker

Either obtain a formal license or obtain written permission to use the material. Sometimes the owner may require you to use a more formal notice, including for example, a copyright notice. If you use handouts that duplicate intellectual property with permission, be sure to add the phrase, "Used with permission of." Your handouts might also explain that you have permission to use other materials (cartoons, photos, music, etc.)