World Bank Open Access Policy
Two aspects of the policy that deserve special mention: (1) deposit is required; and (2) the policy focuses on the terms of reuse in addition to online availability.
The key features are that World Bank staff are required to deposit their research into the Bank's Open Knowledge Repository. Internally published research will be published under the Creative Commons Attribution 3.0 Unported License. Externally published articles will be published under the Creative Commons Attribution Non Commercial No Derivatives 3.0 Unported License unless the publisher accepts the CC BY license.
On May 21, 2012, I participated in a panel discussion about how this policy will contribute to the Bank's pro-development mission. The video from that is here: