Powerful wiki with tight integration
We purchase the Kwizcom wiki for use on our internal collaboration sites for departments, communities and projects and for the price it can't be beat. Many other wiki products are much more expensive and they require you to stand up infrastructure for their product and then there is information passed back and forth between SharePoint and the other wiki. This one leverages SharePoint Site Collections, Sites, Lists and can be activated using features as any solid and true SharePoitn bolt on should be.
- Tight integration with existing SharePoint environment
- Strong support for wiki markup and very solid editor
- Some minor bugs with it but we were able to work through them