If you've ever wondered if Twitter is the right social media platform for promoting your subscription business, consider these statistics:

320 million monthly active Twitter users 42.6 million smartphone Twitter users in the U.S. 6,000 tweets, on average, are posted every second 500 million tweets are posted per day 200 billion tweets are posted per year

Many subscription companies are using Twitter successfully with followers in the millions and tweets in the tens of thousands, and the most s...