You can edit wikis quickly, in a WYSIWIG environment. Using wikis, teachers can co-construct websites with their students. Many learning management systems have wikis embedded. Yet there is an advantage to using a public wiki (with privacy properly managed). Students will be able to access their work beyond a single school term. Their parents and friends may also be able to see it.
This article will discuss the wikispaces.com platform because Wikispaces provides free wikis for education and it is easy to use. This is the also the platform I am most familiar with. There are other platforms as well that are free to educators and that offer similar functions.
Via Jim Lerman, Lynnette Van Dyke, Luciana Viter, Monica Mirza