Research participants
The participants in this study were 111 students (48 males and 63 females) enrolled in an ESP course: English for Business Communication in a technological university in Taiwan. The participants were divided into three groups (English majored undergraduate students, postgraduates of Industrial Management, and postgraduates of Business Administration). Each group operated one Facebook site for giving peer assessment and feedback on their four assignments as well as sharing their English professional knowledge and exchanging ideas and opinions.