It's hard to justify whether wiki is useful or not. I think is depends on each student because some of them would like to use it while others don't get use to it. Also, it depends on the modules. For example, in LE module our team almost didn't use it at all because we always worked together and created all the ppts together. Even though we searched some information after teamwork, we just brought them to the next meeting instead of uploading them into wiki. Everyone has his/her own opinion towards a question and then looks for information according to his/her minds. Even though this information has been uploaded into wiki, others may not know what does he/her mean at all and then give up reading. Therefore, face-to-face talking appears more effective and practical because we can understand others opinion in several minutes and give feedback to them immediately. But in KBAM module, we used wiki frequently because the task was so tough and it was impossible for everyone to work together all the time. However, as far as I'm concerned, the contribution of wiki this time wasn't at communication. We still brought all the information we found to the meeting and discussed together. The contribution of wiki was it helps our leader to organize our work more efficiency. We created different pages for everyone so that the leader can see clearly what we did and thus can link our work quickly. Anyway, it was a great help.