"Open source describes practices in production and development that promote access to the end product's source materials—typically, their source code. Some consider it as a philosophy, and others consider it as a pragmatic methodology. Before open source became widely adopted, developers and producers used a variety of phrases to describe the concept; the term open source gained popularity with the rise of the Internet and its enabling of diverse production models, communication paths, and interactive communities. Subsequently, open source software became the most prominent face of open source practices."
Source: http://en.wikipedia.org/wiki/Open_source
Here at I'm The Black Sheep we stand by our committment to cost effective solutions for small, medium and large businesses. Open Source allows you to get more bang for your buck and not pay huge fees for your web solutions