As recently as ten years ago, it may have seemed like science fiction to imagine collaborative spaces on the Internet. Today, collaborative websites have proliferated: (1) blogs; (2) social networking; (3) image sharing; (4) video sharing; (5) open educational resources; and (6) popularity websites. Another type is called a wiki, an online computer programming that allows users to easily create, edit, link, and track changes to web pages. Wikis are increasingly used by businesses to provide affordable, effective intranets for knowledge management and by educators to promote student collaborative learning, through such sites as Wikispaces, Peanut Butter Matrix, SeedWiki, and Wikimatrix. However, questions on who owns the copyright and who is liable for the content should be taken into consideration. In this article, the authors describe the complexities and options related to copyright for collaborative spaces, including wikis.