This document discusses business opportunities in mobile and web technology in Indonesia. It notes that while internet penetration is still only about 1 in 7 people, smartphone usage is growing rapidly, presenting opportunities. Over half of Indonesians use mobile phones, showing the potential of mobile applications and services. Examples are given of successful global businesses like Groupon that started simply but achieved huge valuations by leveraging online and mobile platforms. The document concludes by encouraging entrepreneurs to utilize various online and mobile business models to reach Indonesia's large market.