Tarkus was the only Norwegian-language magazine dedicated to progressive rock. In March 1994 the first, very simple issue of the prog-fanzine Hybris was released. In September of the same year, the first edition of Prognetik saw the light of day. These two magazines existed separately until the end of 1995. Then parts of the two magazines' editorial boards merged with members of the editorial staff of Uhørt Radio and formed the magazine Tarkus. Tarkus Magazine published 4 issues a year, each of 32-48 pages. Issue #54, September 2010, was the last printed one. Tarkus continued as a webzine until 2015. (Most of the back issues are available as pdf files - tarkus.org)