If "open source" predates OSI, it must have been a very underground word. It doesn't appear before 1998: https://books.google.com/ngrams/graph?content=open+sou

If "open source" predates OSI, it must have been a very underground word. It doesn't appear before 1998: https://books.google.com/ngrams/graph?content=open+source&case_insensitive=on&year_start=1990&year_end=2008&corpus=15&smoothing=0&share=&direct_url=t4%3B%2Copen%20source%3B%2Cc0%3B%2Cs0%3B%3BOpen%20Source%3B%2Cc0%3B%3Bopen%20source%3B%2Cc0%3B%3BOpen%20source%3B%2Cc0 https://books.google.com/ngrams/graph?content=open+source&ca... My take on the matter: http://jordi.inversethought.com/blog/5-things-we-have-forgotten-about-open-source/ http://jordi.inversethought.com/blog/5-things-we-have-forgot...