Unitarian Universalism is a liberal religion with Jewish-Christian roots. With no set creed, UUs affirm the worth of human beings, advocate freedom of belief, support the search for advancing truth, and provide a warm, open, supportive community for people who believe that ethical living is the supreme witness of religion.
A good introduction to Unitarian Universalism and a wide variety of information can found on the Unitarian Universalists Association (UUA) website.