Thanks to J.W. for pointing out a Google Docs new tool that allows forms to be embedded in sites. Comments at the official Google Docs blog suggest not all is well, but it should be useful for adding — at the very least — a straw poll capacity to blogs or an initial level of interactivity on church sites.
I wrote about a prior development, using Google Docs as a form, in February and right now I think that’s the more useful technology for churches.