With the rise of Twitter, we’ve also seen the rise of link shorteners (standard URLS take up too many characters). The king of the link shorteners right now is bit.ly, which is the default shortener ...
The default link shortener on Twitter, bit.ly, just keeps getting bigger. In March, 3.4 billion bit.ly-shortened links were clicked on, up from 2.7 billion in February and only 87 million a year ago.