There are two main reasons to make a wedding website. One is to give guests need-to-know info that may not be included on the invite (hint: no need to bulk up that envelope with directions and hotel suggestions). This means you'll want to cover the who, what, when and where, plus how to get there. The second reason is to add other fun stuff guests will want to know, like suggested attire and who will be in the wedding party. Think of the site as a one-stop shop guests can check whenever they have questions -- without having to call you. And, if there's something that only some guests will be invited to, leave it off or make a section that only invitees can see (yes, that's doable!).