Abstract: A platform provides for interaction with customers or other classes of individuals on a group basis. The platform supports a method that includes maintaining data about groups of persons, wherein the groups include persons associated with respective requests for action. The data further includes information sufficient to contact members of the groups. The platform provides a client interface, such as a web page for use of the data about groups of persons and requests for action. Using the client interface, users find and become members of groups. The platform also provides a business user interface, such as a web page, for use of the data about groups and about requests for action, by which business users monitor activity of groups and communicate with the groups. The client interface includes tools for browsing a set of requests for action, selecting a particular request, and joining a group of persons associated with the particular request.