In this paper we explore the data gathered from a group of nine in-service teachers who were trained online to become future telecollaborative teachers. Participants from different countries worked in two small groups in a wiki designed specially to facilitate discussion and collaboration. Tasks included reading and reviewing articles on telecollaboration, critically analysing examples from authentic exchanges, organising a hypothetical exchange and designing a tool for its assessment. Analyses of the pattern, scope and nature of user contributions as reliable measures of collaborative behaviours by wiki-users were carried out on the data gathered from six wiki pages and corresponding discussion pages. Findings and discussion elaborate on the collaborative behaviour (or lack thereof) observed among participants. [For the complete volume, "New Perspectives on Teaching and Working with Languages in the Digital Era," see ED565799.]