Google launched a new tool for weddings. They also have some great tips from destination wedding planner Michelle Rago, a New York Based destination wedding planner.
With destination weddings you often have a short deadline from suppliers to secure a group rate and book your guests so I would love to see the wedding evite/website used for this. Google has some great themes that would go with a tropical or local wedding. Guests that have confirmed attendance could received an invitation in the mail at a later date with the wedding events.
Here is a list of the new Google tools:Create a website with Google Sites
Share your story and event details with with an easy to create website. Choose the style that fits your theme or venue, then edit your website with ease.

Photo editing and personalized announcements from Picnik
Use Picnik’s photo editing tools to create photos that are simply perfect. Then use them to create announcements, save the date cards and more.

Plan the nuts and bolts using Google Docs
Save time by collaborating with your bridal party on guest lists, schedules, addresses, and more. Access and edit your planning documents from the bridal shop, bakery or pretty much anywhere.
Share photos with Picasa Web Albums
Create an online photo album to share your engagement and wedding pictures, or gather photos of floral arrangements, dresses and other inspirations.