The main purpose of this paper is to study on the relation between utilization types of internet and performance at the small and medium firms in Korea. To accomplish the purpose of this paper effectively, first of all, theoretical background of the characteristics of chief executive officer are reviewed briefly. Second, research methodology is discussed with the following topics: (1) variables and operational definitions (2) research model and hypotheses (3) data analysis methods Third, research results are discussed with following topics: (1) characteristics of the sample (2) validity and reliability of variables (3) frequencies of the variables (4) resells of hypotheses tests Finally, this paper is summarized and future research areas are suggested briefly.