Google Drive - An expanding hover interface allows you to choose the desired amount of rows and columns in a new table.
/via Kjetil Holmefjord
Xcode - The editor sidebar shows how “deep” the indentation of the code is with varying values of grey.
Mixcloud - The “Follow” button changes to “Follow back” if the user is already following you.
OS X - Adjust the volume in 1/4 increments with shift+alt+volume keys.
Pojo - When uploading an image, the picture is shown immediately with an upload progress overlay.
iOS 6 - When selecting new wallpaper, preview screenshots show a realtime view of your current home & lock screens
/via Rich Cornish
Facebook - On the mobile app, a notification tells you about new comments while you’re writing a comment.
/via Brian Grellmann
Google+ - Guesses where a user might work based on where their friends work.
/via Artem G.
The Verge - The logo rotates 90 degrees on hover to indicate “Back to top.”