1) Social networking service 
Urturn is a social network. Urturn initially launched in early 2011 as Webdoc by co-founders Stelio and Alexander Tzonis. The company raised $500,000 from family and friends before its series A funding round. Webdoc was relaunched as Urturn in January 2013 followed by an accompanying iPhone app in May. With the news of the app, Urturn also announc...