Is open source a development model, business model, or something else?: 
The term “open source” was coined in 1998 at a strategy session held by Open Source Initiative (OSI). The OSI maintains the Open Source Definition (OSD), which places mandates on the distribution terms of any software that claims to be open source. The OSI also maintains a curated list of official open source licenses that meet these guidelines.
read more: Opensource.com fatherlinux
Supporting Open Source.
Have you tried: Travelling to South Africa?