New Tab by Flickr - Get a beautiful photo each time you open a new tab
Serenade - Code with voice
Exposure New Tab - Get a beautiful photo from Exposure in every new tab
Tweedle App - Notion is nice but sometimes all you need is an app like Tweedle.
Less Boring New Tab - Your browser deserves a better new tab page
Talon - Capture any website and edit it instantly with Aviary.com applications.