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.
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.
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.