UX Challenges - Done reading about UX? Start doing it.
New Tab by Flickr - Get a beautiful photo each time you open a new tab
Befront - Learn UX/UI design skills in practice with bite-sized tasks
Backdrops - The only wallpapers you'll ever need. Say hello to Backdrops.
Weekly UX Exercise - Receive challenges top companies use to interview designers
NatGeo NewTab - Displays the NatGeo Photo of the Day on opening a new tab