The purpose of this study was to evaluate the effectiveness of a teachers\' web-based training program. All the 873 teachers participated, 377 elementary, 184 middle, and 312 high school in the program. They completed all the requirements of the \'internet beginners training course\' offered in Kyungnam Teachers Training Institute. The questionnaire composed of 21 items, including 10 items asking general opinions to training program, 7 items indicating computer experience, and 4 items collecting demographic variables. The results showed that teachers had relatively higher level of computer experience, above average responses to training environment, positive responses to training management, and above all the highest level of responses to expected training outcome. Finally, four one-way ANOVA of teachers\' responses to training program showed a significant effect for computer experience, but not for gender, school level, and teaching career variables.