Groups use email to send messages to one another and produce documents together. For example, suppose your study group has a question about the material in a class. Instead of four or five people calling the professor, one person can send an email message and distribute the answer to the study group. Or if you are writing a proposal with eight group members, you can email your section to everyone else. The other group members can then make changes and add to your text. Email's advantage is that other people can respond to your ideas quickly and easily.
Email also allows you to create distribution lists. For instance, a list including the eight group members on the proposal team means that you only have to send the message once, not eight times. Teachers often create distribution lists for their classes. Teachers, or students, can type a message once and send it to every person in the course.