SignUp.com is an online tool designed to facilitate the organization and coordination of various group activities. It offers a way to try to boost participation through online sign-up sheets and volunteer scheduling. The process involves three main steps: first, users plan their event or activity; second, participants sign up using the created forms; and third, SignUp.com sends reminders to ensure participation and smooth operation. This platform aims to eliminate the frustrations often associated with group planning, such as managing multiple chat threads, group texts, and 'reply-all' email chains.