Net neutrality means that the Internet has no gatekeeper. It encompasses all the issues related to the circulation of information on the Internet, such as free speech, access to knowledge, copyright or innovation. Thanks to this principle, everyone retain the freedom to access and produce the information they want.
But this funding principle of the Internet is now under threat, as some telecom operators and content industries want to develop business-models based on the prioritization of certain information flows by taking control of the network. Also, governments threaten Net neutrality by seeking to implement filtering techniques in order to re-establish the kind of control they used to have on traditional and unidirectional media.