Nasza-klasa.pl

NK.pl, formerly Nasza-klasa.pl (nasza klasa is Polish for "our class"), is a large Polish school-based social networking service used by alumni and students. NK.pl is owned 70% owned by Forticom and the rest is owned by the Polish Nasza-Klasa Sp.z.o.o., Nasza-Klasa's founding company.

History

NK.pl was launched on 11 November 2006 by Maciej Popowicz, Paweł Olchawa, Michał Bartoszkiewicz, and Łukasz Adziński, four college students studying information technology at the Wrocław University of Technology and University of Wrocław. The company is headquartered in Wroclaw, Poland, and its name comes from the song "Nasza Klasa" by Jacek Kaczmarski.

The website enjoyed spectacular growth and success, and one 2009 study called it a "model example of the ‘rags to riches’ ideal of an enterprise construed with no financial funding and no institutional support (neither from ASP/ISP corporations nor from central/local administration)". Specifically, as of 2009 the service had 13.5 million active users. NK.pl ranks among the top five Polish social networking portals, behind Google.pl, Onet.pl, and Wirtualna Polska, and it attracts more than 50% of Polish Internet users (10% of the traffic comes from abroad).