TwitterThis gives people a way to share the Reuters story they're reading with their friends on Twitter. Various story pages on the experimental Reuters Labs website, such as
this one, have a TwitterThis link on the toolbar just below the headline. Clicking this link initiates the process of posting the story to Twitter. Because Twitter posts are limited to small bits of text, each character is at a premium. In order to shrink story URLs into a more Twitter-friendly size, TwitterThis employs another Reuters Labs technology, called DinkyLink.