"coWiki is a sophisticated but easy to use web collaboration tool that helps you and your co-workers to create and organize web documents, weblogs and knowledgebases or any other document structures directly in their HTML browser. You may evolve ideas and gain a concomitant XML documentation of your brainstorming without having to concentrate on complicated structural syntaxes.
In many senses, it is very like a wiki but additionally provides an easy way to secure and discuss its documents."