More than 75 percent of Twitter's 218 million monthly active users reside outside the U.S., the company revealed in its initial documents. International revenue, however, constituted only 25 percent of the company's total sales for the three months ended June 30, 2013. That's a big gap Twitter needs to fill.
Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is email@example.com