Since the authors participated in the editorial committee in October 2001, many dramatic changes have been introduced to the Journal of Korean Neurosurgical Society[JKNS]. The format, the external appearance, the editorial system, and the reviewing process have been transformed with new standpoints to enhance the quality and to raise the level of JKNS. The authors reviewed papers published on JKNS in 2006 with special interest on the changes of JKNS during last five years. In total, 186 articles were published on JKNS in 2006. Because the editorial committee asked two review articles to renowned neurosurgeons, there were 184 peer-reviewed articles. Eighty seven clinical articles, eighty one case reports, seven laboratory investigations, four special articles and five technical reports were published. This distribution changed from the previous year with marginal value of statistical significance [p=0.101]. The ratio of the original articles [laboratory investigations and clinical articles] decreased to 51.1% from 57.5% of 2005 but the difference was not statistically significant [p=0.222]. The number of laboratory investigations significantly decreased to 7 [3.8%] from 19 [10.4%] of 2005 [p=0.014]. Other changes such as number of authors per article, number of institutes which published papers on JKNS have been examined to assess the trend and/or change in characteristics of papers published on JKNS.