Internet Archive: Philosophers Speak of God
- Book by Charles Hartshorne and William L. Reese. The University of Chicago Press, 1953.
- http://www.archive.org/details/philosophersspea009720mbp

Harvard Square Library: Charles Hartshorne
- Comprehensive biography by Donald Wayne Viney.
- http://www.harvardsquarelibrary.org/Hartshorne/Viney/

Charles Hartshorne: A Secondary Bibliography
- Compiled by Dorothy C. Hartshorne who assisted her husband editorially on many of his books and articles.
- http://www.religion-online.org/showarticle.asp?title=2428

Charles Hartshorne
- Selected articles.
- http://www.anthonyflood.com/hartshorne.htm

Wikipedia: Charles Hartshorne
- Survey of career and thought.
- http://en.wikipedia.org/wiki/Charles_Hartshorne

Memorial Resolution - Charles Hartshorne
- Biography and accomplishments.
- http://www.utexas.edu/faculty/council/2000-2001/memorials/Hartshorne/hartshorne.html

Charles Hartshorne's Psychicalism
- Discussion of Hartshorne's version of panpsychism.
- http://websyte.com/alan/hart.htm

Charles Hartshorne: The Einstein of Religious Thought
- Two biographical essays on Hartshorne.
- http://www.harvardsquarelibrary.org/unitarians/hartshorne.html

Brief Excerpts from A. N. Whitehead and Charles Hartshorne
- Collection of quotes from the two eminent process philosophers.
- http://websyte.com/alan/brief.htm