Technologically-supported collaborative learning enhances language development as students learn in social interactions; commenting on each other’s work prompts learners to share their experiences, reflect on their own and their classmates’ work and analyze it thus developing their critical thinking skills. Despite the numerous benefits, the present study reveals the restricted use of blog as a tool promoting collaboration among the students. Low interaction between the learners can be attributed to low level of motivation and confidence, the feeling of uneasiness while commenting on their friends’ posts or inadequate language skills. When they were engaged in the blogging activity, the students frequently fell back on their native language, especially in order to offer numerous comments, share experiences and develop rapport with their classmates.