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. For example: "All of the materials presented in this presentation are either original, licensed or used with permission." However, if you wish to synchronize your music to another media (sound on slide, video, etc.), then you must obtain a separate synchronization license.