Twitter’s annual revenue is projected to hit $1.194 by 2016

As it stands, Twitter is set to bring in 140 million in revenue for 2011. That figure doesn’t sound bad until you compare it to Facebook’s $4.27 billion projected revenue for 2011. But according to a study by SharePost, if Twitter’s rate of revenue of growth continues it will be on pace for over $1 billion in annual revenue in four years.