The most basic relevant groups are the users and the producers of the technological artifact, but most often many subgroups can be delineated – users with different socioeconomic status, competing producers, etc. Sometimes there are relevant groups who are neither users, nor producers of the technology, for example, journalists, politicians, and civil organizations. Trevor Pinch has argued that the salespeople of technology should also be included in the study of technology.  The groups can be distinguished based on their shared or diverging interpretations of the technology in question.
Contemporary folklore and stereotypes that we are exposed to contribute to a lack of knowledge concerning native American fishing practices. Brumbach (1986:36) noted that "popular folklore emphasizes fertilizer value of the fish but seems vague about their consumption as food." Perhaps the stereotype of the "hunter/gatherer" among anthropologists similarly attenuated a focus on fishing, as the word "fishing" is not included in the phrase "hunting/gathering." Despite this fact, in some societies, the role of fishing may have been equal to or surpassed that of hunting and/or gathering. 
" The Significance of the Frontier in American History " is a seminal essay by the American historian Frederick Jackson Turner which advanced the Frontier Thesis of American history . It was presented to a special meeting of the American Historical Association at the World's Columbian Exposition in Chicago , Illinois in 1893, and published later that year first in Proceedings of the State Historical Society of Wisconsin , then in the Annual Report of the American Historical Association . It has been subsequently reprinted and anthologized many times, and was incorporated into Turner's 1921 book, The Frontier in American History , as Chapter I.