People form discourse communities to have groups where people can fit in or belong to that share similar ideas, beliefs, opinion, or goals to achieve. It motivates individuals to join these communities so they can contribute their thoughts, ideas, beliefs or opinions on the subject that these communities possess. Also, if these communities are all wanting to work toward a common goal, individuals are motivated to these communities to contribute to also achieving these goals. People gain a sense of community, togetherness and communication with joining a discourse community. Writing can be used to police a community’s membership because it can state the requirements and expectations of these communities, so members know what is anticipated in these communities before joining them. Writing can also create involvement within a community and for people to contribute to the discourse community. Writing is key in delineating a discourse community from a speech community because writings can offer an identical message to large groups of people. Speech can only offer what is being said to only those that are listening. Writings offer people the ability to reflect and edit what has been written in the past.