Twitter grew by 40% over the second half of 2012.According to Global Webindex, it now has 288 million “active users”. The United States represents 20% of that active traffic. The types of people most likely to be on the platform are in advertising, marketing, technology and small businesses. 25-34 year olds now make up the fastest growing demographic on twitter.
Check out this great infographic of the twitterverse. For a PDF copy click here to download.