Wiki is "the simplest online database that could possibly work". It provides a server-side tool to create and manage Open Content on the Web. Wiki is unusual in that it's a minimalist solution that allows anyone with a forms capable browser to play, and allows both content and structure to be edited by anyone. Wiki can also be a personal, Internet aware, relational notebook and presentational tool. The workshop intends to touch on some of the fundamental properties of a simple wiki system and discuss some of the issues relevant both to personal use and to public deployment. It's intended that participants will be able to set up trial QuickiWiki systems of their own, and perhaps also try collective content co- authoring. In any case, a public web site copy of the WOS2 workshop presentation wiki will allow continued discussions after the conference.