Less Boring New Tab - Your browser deserves a better new tab page
Exposure New Tab - Get a beautiful photo from Exposure in every new tab
Mustsee - Discover the world’s most beautiful places
NatGeo NewTab - Displays the NatGeo Photo of the Day on opening a new tab
Google Art Project - Chrome extension from the Google Cultural Institute
New Tab by Flickr - Get a beautiful photo each time you open a new tab