This document discusses using wikis in academic lectures. It defines wikis as websites that allow collaborative editing without special privileges. The largest wiki is Wikipedia, which is written collaboratively by volunteers. Wikis enable collaborative work and are easy to learn. They can help develop sharing and harness collective intelligence, though they risk vandalism and lack of organization. The document proposes using wikis for student research projects, course resources, knowledge bases, and group authoring to build learning communities while developing digital and relational competences.