Recent reports from the Congressional Research Service that have not been made readily available to the public include the following (all pdf).
The U.S.-Canada Energy Relationship: Joined at the Well, June 17, 2011
Foreign Assistance: Public-Private Partnerships (PPPs), June 13, 2011
Legislative Branch: FY2012 Appropriations, June 15, 2011
The Arecibo Ionospheric Observatory, June 16, 2011