Links, links, links

http://www.weddingquestions.com looks like it might be helpful, although it seems that you can't see other people's questions. Maybe you have to sign up to see them?

http://www.weddingvowsthatmakehistory.com/ is neat - for $10 you'll get a set of vows and stuff that talk about "this day in history" when you've chosen your wedding date.