In our attempts to keep our wedding as eco-friendly as possible, we decided to forgo the usual direction cards in our invitations and make a wedding website instead. When I was hunting around online for the best way to give our guests sensible directions to our ceremony and reception, I came across wedding mapper.
It's free, includes user friendly "directions to" and "directions from" functions (similar to Google maps), has symbols to show ceremony, hotels, airports, etc. on the map- and even allows you to add photos for each location (again, very reminiscent of Google). Once I put ours together I added a link to the map in our wedding website, and voila!I don't claim to be the most computer savvy person around, but our map turned out pretty freakin' cool if I might say so myself.
(I believe some of the fancier wedding websites include mapping functions, but since ours was free and simple, this worked well for us.)