TYPO3
TYPO3 is released under the GNU General Public license (GPL). In general, this license provides software at no cost and requires that all the released improved versions be free software. The full GNU GPL license is available at http://www.fsf.org/licensing/licenses/gpl.html.
Audio, Image, Video, Text, and Education Licensing
All final audio, image, video, text, and education materials generated by Cannonbose are released under the Creative Commons Attribution-Share Alike 2.5 License (CC).
You are free to copy, distribute, display, and perform the work; to make derivative works; and to make commercial use of the work under the following conditions by Attribution and Share Alike. You must attribute the work in the manner specified by the author or licensor. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. For any reuse or distribution, you must make clear to others the license terms of this work. Any of these conditions can be waived if you get permission from the copyright holder.
Check http://creativecommons.org/licenses/by-sa/2.5/legalcode for specifics.
Software Licensing
All software developed by Cannonbose is released under the Lesser GNU Public License (LGPL).
The GNU Lesser General Public License is a free software license published by the Free Software Foundation. It was designed as a compromise between the strong-copyleft GNU General Public License and simple permissive licenses such as the BSD licenses and the MIT License. GNU itself is a recursive acronym for "GNU's Not Unix". LGPL can be linked to non-(L)GPLed program, which may be free software or proprietary software [1]. The non-(L)GPLed program can then be distributed under any chosen terms, provided the terms allow "modification for the customer's own use and reverse engineering for debugging such modifications".
The LGPL places copyleft restrictions on the program itself but does not apply these restrictions to other software that merely links with the program. There are, however, certain other restrictions on this software. Essentially, it must be possible for the software to be linked with a newer version of the LGPL-covered program. The most commonly used method for doing so is to use "a suitable shared library mechanism for linking". Alternatively, a statically linked library is allowed if either source code or linkable object files are provided.
Check http://www.gnu.org/copyleft/lesser.html for specifics.
