Bitly - When dragging the bookmarklet, the bitly fish cheers you on.
/via Graham Dobie
iTunes - Lets you filter song rating by typing asterisk symbols in search bar
Facebook - When it’s your friend’s birthday it suggests you post about it.
Apple - The image used in the Apple Store for the MacBook Pro subtly shows the anti-glare option of the MacBook Pro with Retina Display.
/via Mario Uher
Twitter - The registration page uses a casual tone of voice in its validation confirmation messages.
GitHub - When creating a new repo, GitHub provides an automatically generated suggestion.
/via Cédric Deltheil
Vimeo - When clicking play, the site will scroll up to fit the video in the browser window.
Basecamp - When you copy-paste an email ID like “John Doe <firstname.lastname@example.org>”, it automatically strips everything and leaves just the email address.