On the website of the Unitarian Universalist Association, read "Inspired Faith, Effective Action: A Social Justice Workbook for Congregations" and find links to social justice resources and information on Unitarian Universalist social justice organizations.
Richard Gilbert's book The Prophetic Imperative, 2nd ed.(Boston: Skinner House, 2000) is available from inSpirit: The UU Book and Gift Shop. See information about the book and download a study guide online.
The Prophetic Imperative Second Edition
From Skinner House Books
Explores the connections between spirituality and social action...