Licensing agreements are the conditions under which one party can use the property of another party. While the real estate concerned may include a large number of properties, including real estate and personal property, licensing agreements are most used for intellectual property, such as patents and trademarks, as well as copyrights for written material and visual arts. Licensing agreements are often used for the commercialization of technologies. Jerry Pournelle wrote in 1983: “I have not seen any evidence that… Levian agreements – full of “You must not” have any impact on piracy. He gave an example of a CLA that was impossible for a user to stick to, and he said, “Come on, guys. No one expects these agreements to be respected. Pournelle noted that, in practice, many companies were more generous to their customers than their U.S. required: “So why do they insist that their customers sign “agreements” that the customer refuses to keep and that the company knows they are not respected? … Should we continue to make hypocrites for both publishers and customers?  A single site is a unique and consistent geographic region in which library/licensed “authorized users” and visitors to the public can access authorized material via a secure network. A single site would have a single billing address for all subscription purchases and all physical sites that access the materials granted would be on the same physical campus. A licensing agreement is a written contract between two parties, in which one landowner allows another party to use that property under a number of parameters.