Not many organisations are large enough and so committed to KM as to hold their own internal KM conference but Wipro did just that only a few weeks ago in Bangalore.
Wipro extended its spirit of Knowledge Management by inviting academicians, external KM experts and business leaders along with delegates from over 48 organizations to collaborate, share, network, and grow by bringing them all under one roof with a daylong for Wipro KM Confluence 2013.
They also produced a nice report on the event that you can find here Wipro KM Confluence 2013
I wish more organizations would take KM as seriously.