Open source computer software is nominally owned by one individual or entity and then licensed out according to an open source license; the license gives the user free use of the software as well access to the source code, so that the software can then be further developed by whoever is interested. Among the works that explore and justify open source development is a series of works by Eric Raymond which include the Cathedral and the Bazaar and Homesteading the Noosphere.
The open source movement is a large movement of programmers and other computer users to give easy access to computer software. It grew out of the Free software movement, and the line between the two is somewhat blurry. In general, the Free software movement is based upon political and philosophical ideals, while open source proponents tend to focus on pragmatic matters. They assert that this licensing allows for a superior software development process, and therefore is not at all incompatible with egoism.
The term "open source" should only be applied to software that meets the terms of the Open Source Definition.
Projects and Organizations:
Companies Involved in Open Source Development:
Examples of Open Source Licenses:
For a more extensive list, see Open source license