UnDistracted App - Use social media in a useful way. Control Facebook, YouTube, Twitter, Reddit, Netflix and LinkedIn in a responsible way.
Minimo - An elegant, simplified new tab page
CUBI - See your life in weeks
Mustsee - Discover the world’s most beautiful places
Newsfeed Burner - Burn away distractions on Facebook, Linkedin and Youtube
New Tab by Flickr - Get a beautiful photo each time you open a new tab