One great way to really provide an opportunity to consider another parenting approach is to do some kind of book study/discussion group at your church. Babywise people do it - why not something on the Continuum Concept, or a collection of your favorite past Mothering articles, or a Sears book? There are ways you could combine it with "churchy" stuff, tailored to your kind of church - e.g. a 3-week spirituality & parenting series, or saying you want to discuss whichever book, article, from a Christian persective. It breaks my heart the way the Ezzo people use Biblical language to support such a non-compassionate way of being with thier babies.
I've had great success with having little 4 or 6 session gatherings at our house on different topics, readings, etc., mostly on more "political" (war & peace) topics but I'd love to do one on AP parenting.
I've also thought of starting a little lending library shelf in the church nursery and helping keep it stocked with good resources. (That would be a place to post a list of "good" websites, too, like this one!
is just to include a good article in with a baby gift of your own. When I was 8 months pregnant a friend gave me a package with two articles (on crying and on sleep) that had come out of past Motherings, and one piece on fathers for dh. I got plenty of other baby gifts, but this was the most valuable.