Communities are defined by shared cultural heritage, language, beliefs, and interests. They can be small, like villages, or large, like regions or nations. According to Murphy and Cunningham (2003), communities are given life through three interacting processes: the social fabric of human relationships, unique power structures, and local resource flows that constitute the economy. There are two main types of communities - traditional, which are based on geographical relations, and alternative, which focus more on integration and addressing oppression.