OS X Mountain Lion comes with built-in support for Twitter. This enables you to send tweets directly from many OS X apps. For example, you can send a link to a web page from Safari or tweet a photo from Preview. You can even take a flattering or funny shot of yourself using Photo Booth and then use that application to send the shot directly to Twitter to use as your new profile picture. OS X also displays notifications if you’re mentioned on Twitter or if a Twitter user sends you a direct message.
Configuring your Twitter account
Before you can tweet things to your Twitter followers or see Twitter notifications, you must sign in to your Twitter account. Here are the steps to follow:
1. In the Dock, click System Preferences. You can also choose Apple → System Preferences. The System Preferences window appears.
2. Click Mail, Contacts & Calendars. The Mail, Contacts & Calendars window appears.
3. Click the Twitter logo. If you don’t see the Twitter logo, click any existing account and then click the Add button (+) at the bottom of the account list. System Preferences prompts you for your Twitter username and password.
4. Type your Twitter username and your Twitter password.
5. If you don’t want other Twitter users to be able to locate you using your e-mail address, deselect the Allow others to find me by email check box.
6. Click Sign In. OS X signs in to your Twitter account.
Adding Twitter usernames to your contacts
With nearly 200 million people on Twitter, ...