I&#x27;ve used a simple wordpress wiki theme called &quot;KnowHow&quot; for a lot of clients, if you&#x27;re looking for an easy-on-the-eyes setup that&#x27;s easy to maintain. I&#x27;ve used it for small business&#x27;s sites and I&#x27;ve also used it to set up an internal KB for a nation-wide shoe retailer while working in their IT dept...  with a couple tweaks and plugins you can setup some pretty decent workflows and approval steps for authoring.