Twitter announced the news on Tuesday, March 06, 2012 that the giant social networking site is now available in right-to-left languages include Arabic, Farsi, Hebrew and Urdu .
For doing this , More than 13000 people from middle eastern countries helped the translation process through Twitter Translation Center from January 25 . Volunteers completed the job only in 40 days and they left a good record .
A Saudi blogger, Egyptian college students, a journalist at the BBC, IT professionals in Iran and Pakistan, an Israeli schoolteacher, the co-founders of the grassroots #LetsTweetInArabic campaign, academics specializing in linguistics, and teenagers in Lebanon were among those volunteers .
In some of these countries like Iran , Twitter is completely blocked . Iranian governments blocked the site in 2009 because of the role of this site in organizing protest demonstration . Pakistan did the same in 2010 .
Twitter was one of the most important tools for Tunisia and Egypt revolution .