Creative Commons, which produces licenses implemented in 50 different jurisdictions until now, including Serbian project, on December 15th celebrates its 6th Birthday around the world. Regarding this occasion, Creative Commons Serbia, Wikimedia Serbia, and Free Software Network Serbia, organises at the Faculty of Mathematics, of the University of Belgrade (room 718, 4th floor) on Monday, December 15th at 6 p.m. – presentation and debate about free software and free scientific, education, artistic and media production to emphasise the importance of free licensing in information society. I’m inviting you tomorrow to join CC birthday world wide celebration, and embrace open source.