Google Science Fair 2013
On first load I thought there is no way this is One Page but after clicking around I was blown away at how well the content loads with AJAX in the main area. Good job Google, not to mention a great initiative!
The Google Science Fair is an online science competition open to students ages 13-18 from around the globe. We're looking for ideas that will change the world. To get started, all you'll need is a Google account.