You can monitor the success of a KM strategy when by measuring the following conditions:

The number of staff is increased in subscribing and actively participating in Knowledge Networks
The increase in volume of traffic in he knowledge networks
When you mention knowledge management in meetings, you don't get a queer look from the staff
The efficiency of the organization is increased
Redundancy in projects and programmes is avoided
True and working rewarding or incentives are put in place for sharing knowledge
Enough budget and time are allocated for staff training and organizational learning
Face-to-Face discussions and forums are organized for knowledge and information sharing periodically