Back to the basics. Just like another other website, there is a home page which typically includes a picture of the couple and a countdown to the big day. Then there are various other pages; how the couple met, the proposal story, who is in the bridal party, ceremony & reception details/ directions/ maps, accommodations info, guest book, photo albums, registry information, and RSVP section. The last one is growing in popularity, not only because it is very "green" and eco friendly, but it is a definitely cost saver to only mail out invitations. It really is such a great idea not only so all your guests are informed, but is a ridiculously easy way for all the guests to really get to know the couple (unless you plan on calling every guest to tell your proposal story). I even found a wedding website demo from Wedding Paper Divas to give you an idea of a typical site.
Speaking of Wedding Paper Divas, which is an amazing online stationary company, I also came across this offer for free personal wedding websites that match your invitations! Check out their website and blog to see their whole catalog and be inspired! Here are just a few of their varied styles. Enjoy!