In reply to Michael Moroney.

Dave Snowden's 7 principles of knowledge management are a pretty good foundation, supported by many in the KM field:

Knowledge can only be volunteered, it cannot be conscripted.
We only know what we know when we need to know it.
In the context of real need few people will withhold their knowledge.
Everything is fragmented.
Tolerated failure imprints learning better than success.
The way we know things is not the way we report how we know things.
We always know more than we can say, and we always say more than we can write down.

http://www.gurteen.com/gurteen/gurteen.nsf/id/km-seven-principles

With Nick Milton's update in 2012: