Really Good UX - A library of screenshots for UX inspiration
Exposure New Tab - Get a beautiful photo from Exposure in every new tab
Startup Timelines - How the frontpages of famous startups changed over time
Less Boring New Tab - Your browser deserves a better new tab page
UXTesting - Discover how your mobile users feel
NatGeo NewTab - Displays the NatGeo Photo of the Day on opening a new tab