We developed the cop package at Xarg as part of a
national project for local government KM. It consists
of the cop-base and cop-ui packages along with
the ratings, related-items, views, and clipboard packages
as well as do something more sensible with categories
for doing KM-ish things.
It's more a subsite configuration than just a package.
You can play with an instance at demo.dotknow.org
if you would like to see what it does. The code there
is a bit out of date but generally it should work.
As for the things there finding their way into dotLRN,
I think Ernie was going to do some work on LORS to
use some of the components. Not sure what else
people are thinking about though.