For example, a lecture delivered by a professor from prepared notes has tangibility and is protected. Copyright law includes a fair use principle. This permits the use of limited quotations or citations for reference. But, for example, posting another individual's entire speech on the Internet would exceed the doctrine of fair use, said Enger. When creating a Web page, everyone must make their own ethical decisions regarding the use of copyrighted materials.
Substantial penalties can result from misuse of someone else's material.