Contents  > Computers  > Open Source  > Licenses

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• Open Source Software Licensing Page - Some very interesting articles on free software licensing: history, forms, and problems, seen from a commercial view. Links to some license texts and important open source sites.

  Affero - General Public License Copyleft license, derived from the GNU-GPL, designed to protect software distributed as web services. http://www.affero.org/oagpl.html

  Against DRM 2.0 A free copyleft license for artworks, which forbids DRM. Includes licence text, FAQ, and a few translations. http://www.freecreations.org/

  Amoeba copyright notice A free software OS. http://www.cs.vu.nl/pub/amoeba/COPYRIGHT

  Amulet License Agreement CMU Amulet Toolkit License Agreement. http://www.cs.cmu.edu/afs/cs/project/amulet/amulet3/manual/overview.html#1002211

  Apache Server Licenses Overview of the different versions of the Apache licenses. http://www.apache.org/licenses/

  The Artistic License Perl package license. http://www.opensource.org/licenses/artistic-license.php

  Bixoft Public License A proposal for an Open Source license that clearly distinguishes between software programs and programming tools. http://www.bixoft.nl/english/license.htm

  BSD: 4.4BSD Copyright License for 4.4BSD. http://www.freebsd.org/copyright/license.html

  BSD: FreeBSD Copyright License for FreeBSD operating system. http://www.freebsd.org/copyright/freebsd-license.html

  BSD: NetBSD Licensing and Redistribution License patterned after FreeBSD Copyright. http://www.netbsd.org/about/redistribution.html

  BSD: OpenBSD Copyright Policy License and background on Berkeley Computer Systems Research Group copyrights. http://www.openbsd.org/policy.html

  Creative Commons A non-profit that offers an alternative to full copyright. Offering work under a Creative Commons license does not mean giving up copyright. It means offering some of an author's rights to any taker, and only on certain conditions. http://creativecommons.org/

  Debian Social Contract Initially designed as a set of commitments that the Debian developers agreed to abide by, it has later been adopted by the free software community as the basis of the Open Source Definition. The Open Directory Project's social contract was also inspired by it. http://www.debian.org/social_contract.html

  E Licenses Mozilla or Mozilla compatible, for E programming language. http://www.erights.org/download/licenses.html

  eCos License Overview Summary of license for Red Hat eCos operating system. http://ecos.sourceware.org/license-overview.html

  Eiffel: ISE Free Eiffel Library License (IFELL) For the EiffelBase library. http://archive.eiffel.com/products/base/license.html

  Freshmeat Listings of browseable licenses and articles. http://freshmeat.net/browse/13/?topic_id=13

  GNU Free Documentation License A version of the GPL for reference material. http://www.gnu.org/copyleft/fdl.html

  GNU General Public License (GPL) One standard for licensing free software. http://www.gnu.org/copyleft/gpl.html

  GNU Lesser General Public License (LGPL) Formerly: GNU Library GPL. http://www.gnu.org/copyleft/lgpl.html

  GNU: List of Licenses Various licenses and comments about them. http://www.gnu.org/philosophy/license-list.html

  IBM - Common Public License (CPL) Open source software license. http://www.ibm.com/developerworks/opensource/

  LaTeX Project Public License Particularly suited for TeX-related programs. http://www.latex-project.org/lppl/

  License information for Xinu software License for the XINU operating system http://www.cs.purdue.edu/homes/dec/xlicense.html

  Lua Copyright notice From Brazil, programming language framework. http://www.lua.org/copyright.html

  Lucent Technologies, Inc. Plan 9 Open Source license agreement http://plan9.bell-labs.com/plan9/license.html

  Mozart License Agreement Mozart: an implementation of Oz 3 programming language. http://www.mozart-oz.org/LICENSE.html

  Mozilla Public License Describes the licensing policy of the Mozilla Foundation, and provides the full text of the license, and FAQs. http://www.mozilla.org/MPL/

  Mozilla Public License Version 1.0 Follows the Debian Free Software guidelines. http://www.mozilla.org/MPL/MPL-1.0.html

  MySQL Licensing Complex hybrid license: public domain, GPL, LGPL, Open Source, commercial. http://www.mysql.com/about/legal/licensing/oem/

  Open Group Public License Open Motif Graphical GUI Software, Public End User License. http://www.opengroup.org/openmotif/license/

  Open Source Initiative - Licenses Copies of licenses approved by the Open Source Initiative. http://www.opensource.org/licenses/

  OpenSource.org: Open Source Definition Not a license itself, but a definition of what conditions a license must fulfill in order to be termed an Open Source license. http://www.opensource.org/docs/osd

  PHP Licence Information Covers licensing issues for developers distributing applications in PHP. Includes links to annotated version of the relevant licenses and other related resources. http://www.php.net/license/

  Python License A very permissive, open source compliant and GPL compatible license used by the team developing the Python programming language. http://www.python.org/psf/license/

  Quick Reference Guide A chart comparing attributes of major licenses, including the option to select your bias. http://pgl.yoyo.org/lqr/

  RTEMS License Information RTEMS open source real-time operating system uses GNU Public License (GPL), except for some special, very limited exceptions. http://www.rtems.com/license/index.html

  Ruby License Dual terms: use GPL terms or its own terms. http://www.ruby-lang.org/en/LICENSE.txt

  SFL License Agreement Covers iMatix Corp., Standard Function Library (C/C++), its source code, documentation, executable files. http://www.imatix.com/html/sfl/sfl4.htm

  Squeak License License for the Squeak software suite, mainly provided by Apple. http://squeak.org/SqueakLicense/

  Understanding Open Source and Free Software Licensing Full text of the book by Andrew M. St. Laurent. [PDF] http://www.oreilly.com/catalog/osfreesoft/book/

  Vita Nuova Inferno Subscription License Fee based, partly open source, for Lucent network OS. http://www.vitanuova.com/inferno/licence.html

  W3C IPR Software Notice W3C = World Wide Web Consortium, one of the Internet's main standard-setting bodies. http://www.w3.org/Consortium/Legal/copyright-software-19980720

  x-kernel Copyright Notice Arizona Board of Regents, University of Arizona. http://www.cs.arizona.edu/projects/xkernel/copyright.html

  Zope Public License (ZPL) Patterned after Apache license. http://www.zope.org/Resources/License/