A discourse community is a group of people that work towards a common goal through communication. This group develops a process for communication, a unique vocabulary of jargon, and a power structure tied to the source of their community.
John Swales maintains that genres both “belong” to discourse communities and help to define them (Borg, 2003).
Swales outlined six characteristics of discourse communities:
1) common public goals;
2) methods of communicating among members;
3) participatory communication methods;
4) genres that define the group;
5) a lexis; and
6) a standard of knowledge needed for membership
(Swales, 471-473).
Any group that works meets Swales's criteria share a discourse community. Basketball teams, Taco Bell employees, librarians, urban planners, teachers, runners, superfans of Beyonce - all share unique vocabulary and create individual discourse communities.
You can be in more than one discourse community simultaneously.
For example, a teacher who is an avid kickball player in a kickball league and is also involved in grassroots voter-turnout organization is part of (at least) three discourse communities:
You don't need academic articles to explore discourse communities. You just need to be a little creative.
Ways to Find Communication Among Discourse Communities