I've posted on here before about
www.weddingmapper.com, but now they have added another fantastic feature! You can upload a guest list from excel and keep track of who's eating what, coming, etc. Then you can make your seating chart. They have an open space where you add circles or rectangles representing tables, and then they list all your guests that you have marked as a "yes" on the right hand side and you can drag and drop guests to tables.... I'm just starting to use it but it seems like an amazing tool!The map tool lets you create a wedding map that looks like a google map and has marked locations like your ceremony and reception site and any other points of interest that you want.