These two basic types of participants use the platform to connect with each other and to engage in exchanges—first, an exchange of information; then, if desired, an exchange of goods or services in return for some form of currency. These participants come together on the platform to engage in a core interaction that is at the heart of the platform’s value-creating mission. In time, other kinds of interactions may be layered onto the platform, increasing its usefulness and attracting other participants.
