As a one-time dabbler in Quakerism (also known as the Religious Society of Friends), I was pleased and surprised to find this blog:http://www.nontheistfriends.org/
I won't endeavor to summarize Quakerism as I will probably do a poor job of it. A quick Googling will probably do better than I could. Despite its Christian religious roots, I've been drawn to Quaker practices, particularly its testimonies of Simplicity, Peace, Integrity, and Equality, and its Meetings of quiet contemplation. Though I do not attend Meetings anymore, this blog has made me consider a possible return.
I figured I'd introduce TA to this concept and see what they think.