Since getting started over seven years ago, Twitter has built a community of over 200 million monthly active users, and over 170 billion tweets have been posted in total. On average, users spend 170 minutes on the site each month and have 208 followers. Twitter is also undergoing a mobile revolution with 80% of its users accessing the site via a mobile device. 63% of brands use multiple Twitter accounts, with YouTube leading the way as the most-followed brand with 33 million followers. How can you be more successful on Twitter? Well, tweets with photos receive engagement rates twice as high as tweets that do not. It's also been found that the more you tweet each day, the less engaged your fans are likely to be. So keep your tweets fresh and timely!