This document discusses the potential of mobile devices as tools for research, communication, and teaching. It contrasts Web 1.0, which was top-down and centralized, with Web 2.0, which is more decentralized and allows for collaboration. Mobile devices are changing how people access and share information, and how they learn. Examples are given of how smartphones are being used for educational purposes in developing countries and how social media was used to share information about protests in Iran.