Last week the Computer and Communication Industry Association issued a report saying that more than 4.5 trillion dollars of annual revenue in the US economy is due to exceptions to copyright law, such as Fair Use:
Fair Use Economy Represents One-Sixth of U.S. GDP

The Fair Use exception to U.S. copyright law, as codified in Section 107 of the U.S. Copyright Act of 1976 states, “The fair use of a copyrighted work … is not an infringement of copyright.” Fair use permits a range of activities that are critical to many high technology businesses such as search engines and software developmers. As the study indicates, however, fair use and related exceptions to copyright are crucial to non-technology industries as well, such as insurance, legal services, and newspaper publishers. The dependence of industries outside the high-tech field illustrates the crucial need for balanced copyright law.

The study itself is available for download from the CCIA Web site.