wanted. i knew what style bridesmaids dresses i wanted. i knew the color scheme. i knew i wanted it to be outdoors. i think some people thought i was nuts. reporter: by the time she met mr. right, she had already assembled a wedding binder of ideas. nobody knew about the binder. it was just another binder on my shelf. reporter: not even engaged, she had to break it to my bo. once we got engaged, the jig was up. i was a little surprised at first. oh, my god, the wedding book? i haven t seen that since the fourth grade. first organized alphabetically, then geographically. reporter: a wedding expert says nearly 40% of the websites visitors are not yet engaged. they even have a section devoted to those dreamers, and it s one of the site s most popular message boards. for kate and shawn, when their big day arrived, they hadn t deviated much from the preplanning. and shawn even had a say. he picked out the tux that he wore and the suit and everything that the guys wore.