There are numerous options in the collaboration and knowledge management space, from big ticket commerical enterprise software suites, to simple open source solutions. Bluespice is a MediaWiki based solution which claims to “extend the functional range” of it’s predecessor, and may fit the requirements for those looking for a familiar intuitive interface, but with a few more bells and whistles, and while still retaining the open source advantage.
Bluespice is a creation of German company Hallo Welt! GmbH, who offer several pricing tiers for the product (including free), as well as paid support.
Excerpt from OpenSource.com
Knowledge management is a key to success in modern enterprises—but it is not exactly easy to achieve. Keeping track of all relevant details across all employees is a huge challenge, especially in agile environments, which most companies say they are.
Most companies resort to buying wiki-like solutions, such as Confluence from Atlassian, which exposes them to the lock-in effect of proprietary software. But many would do well to consider BlueSpice, an open source alternative to Atlassian Confluence that has a noble ancestry: it’s based on Wikipedia’s MediaWiki.