In this paper we introduce a Web-based tandem system which helps to establish language learning partnerships between people who prepare for the exam in bilingualism in South Tyrol. The system will be integrated as a module into the ELDIT language learning system which already includes a small text corpus and a learner's dictionary. The new module supports the formation of partnerships and the exchange of information including exercises between learning partner for the purpose of error correction and feedback. Adaptation technologies are applied in order to support autonomous use of the program.