CopyLeft License : Every Open Source License

GNU GENERAL PUBLIC LICENSE Version 1, February 1989 Copyright (C) 1989 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The license agreements of most software companies try to keep users at the mercy of those companies. By contrast, our General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. The General Public License applies to the Free Software Foundation's software and to any other program whose authors commit to using it. You can use it for your programs, too. ...

The "No problem Bugroff" license. Richard Stallman of the Free Software Foundation devised, in addition to some marvelous software, the GNU General Public License (GPL for short). Or the CopyLeft it is sometimes called. It is quite a revolutionary document, using the "copyright" tool to to protect your right to use free software. Unfortunately using copyright to protect free software is a lot like using a Jackal to guard the hens. In fact, various inconveniences relating to this have resulted in modifications such as the LGPL (Library General Public License) and more recently the NPL (Netscape Public License) I call these matters mere inconveniences, the real damage will occur when the Jackal's, (sorry, I mean lawye...

The OpenLDAP Public License Version 2.6, 14 June 2001 Redistribution and use of this software and associated documentation ("Software"), with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain copyright statements and notices. 2. Redistributions in binary form must reproduce applicable copyright statements and notices, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Redistributions must contain a verbatim copy of this document. 4. The names and trademarks of the authors and copyright holders must not be used in advertising or otherwise to promote the sale, ...

SIL OPEN FONT LICENSE Version 1.0 - 22 November 2005 PREAMBLE The goals of the Open Font License (OFL) are to stimulate worldwide development of cooperative font projects, to support the font creation efforts of academic and linguistic communities, and to provide an open framework in which fonts may be shared and improved in partnership with others. The OFL allows the licensed fonts to be used, studied, modified and redistributed freely as long as they are not sold by themselves. The fonts, including any derivative works, can be bundled, embedded, redistributed and sold with any software provided that the font names of derivative works are changed. The fonts and derivatives, however, cannot be released under any othe...

SGI FREE SOFTWARE LICENSE B (Version 1.0 [1/25/2000]) 1. Definitions. "Additional Notice Provisions" means such additional provisions as appear in the Notice in Original Code under the heading "Additional Notice Provisions." "API" means an application programming interface established by SGI in conjunction with the Original Code. "Covered Code" means the Original Code or Modifications or the combination of the Original Code and Modifications, in each case including portions thereof. "Hardware" means any physical device that accepts input, processes input, stores the results of processing, and/or provides output. "Larger Work" means a work which combines Covered Code or portions thereof with code not governed by the terms of this L...