Arizona
* "Digital Commons" of the University of Arizona

Georgia
* "SmartTech" at Georgia Tech

Indiana
* "e-Pubs" at Purdue

Minnesota
* "Digital Conservancy" at the University of Minnesota

North Carolina
* Duke's Digital Collections . . . A wonderful site.

Texas

* Texas A&M Libraries Repository

* DSpace at the ISchool of the University of Texas

* DSpace at the University of Texas Austin

* "Digital Commons" at the University of Texas Medical School, supporting the University of Texas at Houston School of Nursing.

United States

* AgNIC Information Center

Europe

* University of Nottingham ePrints Repository

* UN FAO Document Repository