- Copyright - the legal right granted to an author, composer, playwright, publisher, or distributor to exclusive publication, production, sale, or distribution of a literary, musical, dramatic, or artistic work.
- Copy Free - a term used to identify the freedom to copy, use, modify, and distribute what you possess. It is a philosophy that stands in contrast to both copyright and copyleft, in that it does not seek to limit or restrict your rights regarding your possessions at all.
- Trade Mark - a distinctive name, symbol, motto, or design that legally identifies a company or its products and services, and it prevents others from using identical or similar marks.
- Creative Commons - a non-profit organization headquartered in Mountain View, California, United States devoted to expanding the range of creative works available for others to build upon legally and to share.
- Royalty Free - the ability to use intellectual property without paying a royalty free (usually related to music).
- GNU Licensed - a free, copyleft license for software and other kinds of works. The GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users.
- Public Domain - works which are not owned by someone, and therefore not protected by copyright.
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