The Bitly platform allows you to connect to your Twitter account to share links right in your Tweets.
To connect your Bitly account to Twitter:
1. Click the Settings menu.
2. Click Group Settings
3. Click Social Networks and then Connect to a Twitter account.
Twitter will prompt you to enter your credentials.
Enter your Twitter information and click Authorize app.
Once you have your accounts connected. You can share your links by clicking on the “Share” button in the All Links section.