If you’re interested in knowing if a publisher pays to be affiliated with the Christian Booksellers Association then you may go here to find out. A CBA member emblem or exhibitor emblem will be next to the name if they pay to be affiliated and are bound by conventions to write for that very targeted but large market of Christians.
I’m not sure why CBA simply doesn’t list affiliated publisher’s only. Seems like that would be a lot easier. My guess is that they simply get a list generated by Spring Arbor, the official distributor to the Christian market and add the membership emblem after the fact.
But anyway, that should help you know who you’re supporting when you buy books–if that’s a concern to you that is. 😉