Open source Software is any software with availability of its coding,it is also called 'Free Software'.Any one can edit,modify the coding and can use.Open source initiative is providing many licenses.Source forge is one of the host where we can download and develop software. Open source players are Red Hat, IBM, Oracle, MySQL (Sun).My favourite open source project is KOHA.
I am also working on my open source project named-SVC2K10
for more info you can visit-http://svc2k10.sourceforge.net/
