Opensource Software
Opensource software is usually developed in a collaborative way. Open source applies to the concept of sharing free data which would usually be subject to copyright. One platform for opensource culture is web-blogging. The webpage is made available to the public and is easily updatable without needing to code or design. Blogs allow the general public to openly express political opinions safely and anonamously, on the opposite end of the scale, blogs are a fun way of socialising and allow people to keep an online record of weekly activities.
Opensource software allows the user to modify the origonal work for free in order for the work to be built apon and thus improved; This then leads to better publicity and software sucess. Some disagree with the nature of opensource. As there is no monetary incentive to create new software, sucessful software will eventually be created less often, slowing down progress and becoming counter productive.
Linux is a large opensource operating system which can freely be distrubuted, the source code may be used and modified under the GNU (General Public License) 
General public license is a copyleft contract which the user aquires when they download a piece of opensource software. This contract is subjected to copyright, modifying the contract in anyway is not allowed, and the same contract is carried through every modified version a user may create. This ensures the same freedom is applied to every version created.
I have discovered mozzilla firefox used Lessigs Creative Commons website to create thier license