This case study is based on an investigation into the use that a group of language learners made of Livemocha.com, a Social Networking Site through which language exchange is enabled via social media applications. The learners created profiles in the website and proceeded to interact with speakers of their target languages, reporting back on their experiences over a 10-week period. As communication between language partners can take place through several different channels, and can be asynchronous or synchronous, written or spoken, it was considered that the preferences of learners with different personality types (as indicated by responses to a Myers-Briggs Type Indicator questionnaire) might be accommodated.Several studies have suggested that the anxiety that some language learners feel when communicating in L2, especially when speaking, is reduced in online environments. Under the premise that a reduction in anxiety may lead to an increased "willingness to communicate" (MacIntyre et al., 1998), the principal objective of this project was to examine the type and frequency of online interactions that the participants engaged in with other speakers of their target languages in the Livemocha language learning community.