Is there a self-hosted google-sites like solution?

I am looking for a wiki type software to keep something like a wiki/knowledge base at my university. I tried MediaWiki (with 开发者_如何学JAVAFCKeditor), DokuWiki and MoinMoin, but they seem too hard to use for an average user - at least not without some trouble.

I found Google Sites to be almost ideal for my purpose, but as I mentioned the wiki is to be used at my university, there will be a strong demand to host it on our servers.

Do you know any software similar to what Google Sites offers? What I really want is a WYSIWYG editor and a hierarchical menu structure - without cryptic "categories" or lots of colons or brackets.

Actually, providing some hacking every CMS (Drupal, Joomla, Wordpres...) could help you. You (the developer) just have to build the site (design, use cases, deployment...etc) according to your (University) needs: simple & intuituve UI, simple tasks..etc