Twitter has surpassed 400 million Tweets per day, with a majority coming from the company's mobile users.

At the Economist’s Ideas Economy: Information 2012, Twiter CEO Dick Costolo reported that the microblogging website now processes more than 400 million Tweets per day. Most recent figures from the company pegged daily activity at approximately 340 million.

At the conference, Costolo said Twitter’s mobile activity has reached an especially high clip compared with other social networks. He didn’t provide any figures related to the exact number that come from mobile devices, but the 140-character format makes Twitter ideal for mobile use.

Marketers have found that sharing links to website content and other Tweets are especially strong for attracting prospects. Similarly, new features Twitter had added have helped both active users and brands find others likely to share content interesting content with. Aside from social content, Twitter has successfully created new features that help users find profiles similar to their own. Making their site more user-friendly will keep users active on the site, while helping brands connect with prospects likely to make social media marketing efforts translate to site traffic and conversions.

Costolo also said that the company’s economic future is not something he is particularly concerned with. In terms of an IPO and becoming publicly traded, it’s unlikely that Twitter will pursue the route too aggressively. Brafton recently reported that Facebook’s struggles on the market have led some to poor perceptions of the network, as 44 percent of consumers say their view of the company has become less favorable since the IPO.

Joe Meloni is Brafton's former Executive News and Content Writer. He studied journalism at the University of Massachusetts, Amherst, and has written for a number of print and web-based publications.