Dictionary of Unitarian and Universalist Biography
   Online biographies commissioned by the Unitarian Universalist Historical Society.
   http://www.uua.org/uuhs/duub/

Postcards of Unitarian and Universalist Church Buildings
   Searchable database of digitized images of nineteenth- and twentieth-century postcards picturing Unitarian and Universalist church buildings.
   http://www.hds.harvard.edu/library/collections/digital/postcards.html

Professor Brought Christmas Tree to New England
   From the Harvard Gazette, an article on Unitarian minister and abolitionist Charles Follen, and the story of how he promoted the Christmas tree.
   http://www.news.harvard.edu/gazette/1996/12.12/ProfessorBrough.html

Reflections of Public Ministry at Harvard Divinity School
   An online exhibit.
   http://www.hds.harvard.edu/library/exhibits/online/hdspublicministry/

Socinianism
   Catholic Encyclopedia article on this body of doctrine held by one of the Antitrinitarian sects that gave rise to Unitarianism.
   http://www.newadvent.org/cathen/14113a.htm

The Unitarian Universalist Tradition: A Basic Research and Reading List
   Annotated list of print and Internet resources, prepared for the Harvard Divinity School community by Andover-Harvard Theological Library.
   http://www.hds.harvard.edu/library/research/guides/uu/index.html

Unitarian History
   An article written by Ken Morrison of the Lakehead Unitarian Fellowship, Thunder Bay, Ontario, Canada.
   http://www.luf.ca/uuhist.htm

Unitarian Universalist Historical Society
   Links for Unitarian Universalist history.
   http://www.uua.org/uuhs/

Unitarian Universalist Origins
   History of the Unitarian Universalist religion by Mark W. Harris, former director of public information for the UUA.
   http://www.uua.org/info/origins.html

Unitarian Universalists in Science Fiction
   Annotated list of science fiction novels and stories with UU characters or references. Also, UU authors of science fiction.
   http://www.adherents.com/lit/sf_uu.html

Universalism on the Pacific Coast
   Articles include history of individual churches, including ones that no longer exist.
   http://www.lafn.org/~dave/uu/universalism