MapGuide Open Source was created in 2005.
Open Source Shakespeare was created in 2003.
Open Source Initiative was created in 1998.
Open Source Development Labs was created in 2000.
Open Source Job Scheduler was created in 2005.
Open Source Developers' Conference was created in 2004.
Open Source Geospatial Foundation was created in 2006.
Open Source Software Institute was created in 2000.
Open Source Industry Australia was created in 2004.
The Open Source Order of the Golden Dawn was created in 2002.
New Zealand Open Source Society was created in 2003.
Most of todays programming languages were created by open source community, and usually are still maintained by them.
In the year 2004, Good old days when it was used to be open-source.