Bigtent is an online collaboration platform that allows businesses and organizations to efficiently communicate and manage tasks within their teams. It enables users to easily create and share documents, assign tasks and deadlines, and track progress. It also features a calendar and messaging system, as well as file storage capabilities. With Bigtent, teams can easily stay connected and organized, while having access to all their documents in one place. Bigtent is available as both a web and mobile app, and can be used to manage projects, events, and other ongoing activities.
Google Groups is fine for communication, but Big Tent contained both communication and calendaring, and more.