This study aims at investigating the effect of eTwinning, an innovative way of cooperative learning, on language teaching. A qualitative research design is preferred in order to explore the experiences of language teachers who have completed successful eTwinning projects. To this end, 7 ELT professionals (4 female, 3 male) from different cities of Turkey have been contacted on the Internet to share their experiences in a semi-structured interview. The data was analysed descriptively to identify (a) a general conceptualization of eTwinning in language learning and teaching settings, (b) the advantages, and (c) the disadvantages of eTwinning from teachers' perspective. The results have been discussed in the light of relevant literature. The paper ends with practical recommendations for teachers and researchers.