In their interactions with native speakers (NS), nonnative speakers (NNS) often position themselves as relative novices. For example, they may orient to the language expertise differential by apologizing for their linguistic ineptness or by making self-disparaging remarks about their second…

Online tools, such as forums, wikis, and blogs lend themselves to learners negotiating meaning and co-constructing knowledge through interaction. However, not enough is known about how tasks need to be designed to make best use of the possibilities of complex…