ChurchMedia.Net is a community for those working in religious electronic media. Participants on message boards discuss a host of topics, from which songs to broadcast for Easter to which microphones work best.
The Meming of Life blog focuses on secular parenting and includes links to secular parenting groups in many states, as well as to sites dealing with secular homeschooling and other related topics.
The Friendly Atheist was started by Hemant Mehta, author of I Sold My Soul on eBay: Viewing Faith Through an Atheist’s Eyes (2007). Mehta and several others contribute to it.