Faith UCC is a member of:

The United Church of Christ
The Florida Conference of the UCC
FUSE (Faiths United for Sustainable Energy)  is an interfaith non partisan nonprofit organization which  mobilizes faith and spiritual leaders in the movement toward clean and sustainable energy.
FAST (Faith In Action for Strength Together)
RCS (Religious Community Services)

Resources:

The Center for Progressive Christianity
The Christian Century
Sojourners
Sea of Faith
The Jesus Seminar