Knowledge Management Software

What software to create Internal Knowledge Sharing site?

I have been asked to create an Internal Knowledge Sharing web site. Something everyone can contribute to and search for answers on. So I need to find a bit of software to start this on. I am looking for something very similar to what this site uses. Our requirements: 1. Open Source. 2. Simple to...

Knowledge management (KM) system for large organisation?

We are a large non-profit organisation (20,000+) with many individuals producing minutes and summaries from internal and external meetings, parliamentary debates, conferences, etc. We are considering to implement a Knowledge Management system, which should allow local users to enter summaries...