Just How Big Is Twitter In 2012?

Key takeaways include:

• While the USA leads the way, Twitter is also massively popular in Brazil, Japan and the UK
  Twitter’s most-followed user, Lady Gaga, is rapidly closing in on 20 million followers
• 64 percent of users access Twitter via Twitter.com
Tweets containing (the somewhat vague) ‘interesting content’ are most likely to be retweeted
• 69 percent of users follow others based on recommendations from friends