This research aimed at 1) studying the second-year university students' achievement after using animated videos through Google Sites to enhance socio-culture of native English-speaking countries, 2) examining the efficiency of animated videos with an efficiency criterion of 75/75, and 3) exploring the students' level of satisfaction after using animated videos. The samples of the study selected purposively were 48 third-year students majoring in English for Communication program at a university in the southern part of Thailand. 15 aminated videos on Socio-culture of native English-speaking countries, pre-test, post-test, and a questionnaire asking for the users' satisfaction were used to collect data which were analyzed by means of average value ( ), standard deviation (S.D), T-test, and E1/E2. The results were as follows: 1) pre-test scores averaged to 13.81 ([x-bar] = 13.81) while posttests averaged to 22.52 ([x-bar] = 22.52). This revealed a statistically significant different level of 0.00, 2) the efficiency of the created animated videos on Socio-culture of native English-speaking countries was at 75.09/75.06 which was higher than the set efficiency criterion of 75/75, and 3) the students had a positive satisfaction towards the animated video at the highest level with the overall mean scores of 4.55 ([x-bar] = 4.55). The results pointed out that using animated videos to enhance Socio-culture of native English-speaking countries can effectively help the students increase their knowledge and understanding.