Benefits of KM Systems:
Some of the advantages claimed for KM systems are:

1. Sharing of valuable organizational information.
2. Can avoid re-inventing the wheel, reducing redundant work.
3. May reduce training time for new employees
4. Retention of Intellectual Property after the employee leaves if such knowledge can be codified.

Source:http://en.wikipedia.org/wiki/Knowledge_management_system

Ahmed Yusuf