Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Minimo - An elegant, simplified new tab page
Corrello - Dashboards for agile teams using Trello
Mustsee - Discover the world’s most beautiful places
Toby for Teams - Better bookmarks, now with collaboration baked in 🔖
New Tab by Flickr - Get a beautiful photo each time you open a new tab