Twitter attracts one million new users per day. (Jeff Bullas)

Of Twitter’s 165 million users, half access Twitter on mobile devices at least occasionally. (HubSpot)

53% of Twitter users have been a member for less than a year, compared to just 19% for Facebook. (Convince & Convert)

76% of Twitter users are active tweeters, up from 47% in 2010. (Convince & Convert)

Want to get retweeted more often? Research shows that keywords which increase the likelihood of retweeting include “please,” “thank you,” “Twitter,” “social media” and “you.” Words to avoid include “lol,” gonna,” “hey,” “tired,” “work” and “bored.” (iMedia Connection)

Twitter users now post 340 million tweets per day, or roughly a billion tweets every three days. (Digital Buzz Blog)