Here are some other Twitter figures to celebrate the 20 billionth tweet:
* Twitter now has 105,779,710 registered users.
* New users are signing up at the rate of 300,000 per day.
* 180 million unique visitors come to the site every month.
* 75% of Twitter traffic comes from outside Twitter.com (via third party applications.)
* Twitter gets a total of 3 billion requests a day via its API.
* Twitter users are, in total, tweeting an average of 55 million tweets a day.
* Twitter’s search engine receives around 600 million search queries per day.
* Of Twitter’s active users, 37% use their phone to tweet.
* Over half of all tweets (60%) come from third party applications.
* Twitter itself has grown: in the past year alone, it has grown from 25 to 175 employees.
