Another place you might want to look is in the church directory service at Sojourners:

http://www.sojo.net/index.cfm?action=network.search_fjc_directory

Sojourners is a publication that promotes social justice as an integral part of our Christian duty to serve our brothers and sisters in Christ. As such, churches that choose to be in their directory are far less likely to be the conservative types that have the most trouble with inclusiveness.