Net neutrality, or open Internet, is the principle that Internet service providers (ISPs) should give consumers access to all legal content and applications on an equal basis, without favoring some sources or blocking others. It prohibits ISPs from charging content providers for speedier delivery of their content on "fast lanes" and deliberately slowing the content from content providers that may compete with ISPs.
The term was coined by Columbia University media law professor Tim Wu in 2003.
The idea of an open Internet is the idea that the full resources of the Internet and means to operate on it are easily accessible to all individuals and companies. This often includes ideas such as net neutrality, open standards, transparency, lack of Internet censorship, and low barriers to entry. The concept of the open Internet is sometimes expressed as an expectation of decentralized technological power, and is seen by some as closely related to open-source software. Proponents often see net neutrality as an important component of an open Internet, where policies such as equal treatment of data and open web standards allow those on the Internet to easily communicate and conduct business without interference from a third party. A closed Internet refers to the opposite situation, in which established persons, corporations or governments favor certain uses. A closed Internet may have restricted access to necessary web standards, artificially degrade some services, or explicitly filter out content.