- 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.
- Aladdin Free Public License (AFPL) - For Ghostscript, by Aladdin Enterprises.
- Amoeba copyright notice - A free software OS.
- Amulet License Agreement - CMU Amulet Toolkit License Agreement.
- Apache Server License - Also in the source code.
- Apple/Disney: Squeak license - Project and license ran unchanged and uninterrupted even during transition to different corporation.
- Apple: Apple Public Source License (APSL) - Apple's license for software released as source code.
- Bixoft Public License - A proposal for an Open Source license that clearly distinguishes between software programs and programming tools.
- BSD: 4.4BSD Copyright - License for 4.4BSD.
- BSD: FreeBSD Copyright - License for FreeBSD operating system.
- BSD: NetBSD Licensing and Redistribution - License patterned after FreeBSD Copyright.
- BSD: OpenBSD Copyright Policy - License and background on Berkeley Computer Systems Research Group copyrights.
- Christian Software Public License (CSPL) - Christianized variant of BSD license.
- 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.
- Debian Social Contract - License for Debian GNU/Linux.
- E Licenses - Mozilla or Mozilla compatible, for E programming language.
- eCos License Overview - Summary of license for Red Hat eCos operating system.
- eCos: Red Hat eCos Public License (RHEPL) - Variant of Netscape PL.
- EFF Archive: Intellectual Property: Open Licenses - Electronic Frontier Foundation page on licenses, includes EFF Open Audio License (OAL).
- Eiffel: ISE Free Eiffel Library License (IFELL) - For the EiffelBase library.
- Freshmeat - Listings of browseable licenses and articles.
- GNU Free Documentation License - A version of the GPL for reference material.
- GNU General Public License (GPL) - One standard for licensing free software.
- GNU Lesser General Public License (LGPL) - Formerly: GNU Library GPL.
- GNU: List of Licenses - Various licenses and comments about them.
- IBM - Common Public License (CPL) - Open source software license.
- IBM Public License - Big Blue's Open Source License.
- LaTeX Project Public License - Particularly suited for TeX-related programs.
- Liberal Source Software (LSS) - Hybrid licensing model, between free and commercial software licenses.
- License information for Xinu software - License for the XINU operating system
- Licensing conditions for OCaml - OCaml is released under the LGPL.
- Lua Copyright notice - From Brazil, programming language framework.
- Lucent Technologies, Inc. - Plan 9 Open Source license agreement
- Mozart License Agreement - Mozart: an implementation of Oz 3 programming language.
- Mozilla and Netscape Public Licenses - Describes the licensing policy of the Mozilla Foundation, with the full texts of the various licenses, and an FAQ.
- MySQL - Complex hybrid license: public domain, GPL, LGPL, Open Source, commercial.
- Netscape: Mozilla Public License (MozPL) version 1.0 - Follows the Debian Free Software guidelines.
- Open Group Public License - Open Motif Graphical GUI Software, Public End User License.
- Open Music License - Music-equivalent to the General Public License.
- Open Source Initiative - Licenses - Copies of licenses approved by the Open Source Initiative.
- 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.
- 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.
- Python Copyright - Open source compliant, but not fully GPL compatible, the only incompatibility is inclusion of a choice-of-law clause.
- Quick Reference Guide - A chart comparing attributes of major licenses, including the option to select your bias.
- Ricoh Source Code Public License - Ricoh Company, Ltd., makes communication and office automation systems.
- RTEMS License Information - RTEMS open source real-time operating system uses GNU Public License (GPL), except for some special, very limited exceptions.
- Ruby License - Dual terms: use GPL terms or its own terms.
- SFL License Agreement - Covers iMatix Corp., Standard Function Library (C/C++), its source code, documentation, executable files.
- The Artistic License - Perl package license.
- Trolltech: Q Public License (QPL) - License for the Qt Free Edition.
- Understanding Open Source and Free Software Licensing - Full text of the book by Andrew M. St. Laurent. [PDF]
- Vita Nuova Inferno Subscription License - Fee based, partly open source, for Lucent network OS.
- W3C IPR Software Notice - W3C = World Wide Web Consortium, one of the Internet's main standard-setting bodies.
- x-kernel Copyright Notice - Arizona Board of Regents, University of Arizona.
- Zope Public License (ZPL) - Patterned after Apache license.