Introduction
As Twitter got integrated into iOS 5.0 for iPhone and iPad devices, Twitter is now integrated with Mountain Lion 10.8. In this article I will be showing you how to enable Twitter, and then will show you few examples for using the Integrated Twitter in OS X Mountain Lion.
Note : If you already have a twitter account, then proceed reading, else you will first need to signup for an account so that you would be able to enable it in OS X Mountain Lion. To sign up for a Twitter account, go to http://www.twitter.com/
Lets first enable Twitter in  OS X Mountain Lion, and then see few examples on how deeply Twitter is now integrated into OS X.
To Enable Twitter in OS X Mountain Lion, follow the below steps:
1. Open System Preferences. Do this by clicking on the Apple logo 
  in the top left side of the screen and then click on System Preferences…
2. In System Preferences and under the Internet and Wireless section, click on Mail, Contacts & Calendars
3. Inside the Mail, Contacts & Calendars preferences, click on Twitter, type your login information for Twitter, then click Sign In
4. Once you are signed in, your Twitter account will be displayed in the left pane of Mail, Contacts & Calendars preferences. You can now close System Preferences, and start sending tweets from almost anywhere in OS X Mountain Lion.
5. So lets see some examples of using Twitter in OS X Mountain Lion 10.8
From Safari :
Clicking on the share button  beside the address bar, and then clicking Twitter
A Tweet box will open where you can start typing your tweet, then by clicking on Send, you will be posting your Tweet.
From the Notification Center :You can directly tweet from the Notification Center, click on the upper right icon representing the Notification Center
as you can see, Click to Tweet is Available on the top of the Notification Center.
Quickly preview any file by selecting it and then clicking on the Space bar. When the file is opened, you can click on the share button
Summary
Twitter is deeply integrated now with OS X Mountain Lion 10.8, you can almost tweet from anywhere in Mountain Lion.
