A preacher who traveled from town to town to set up temporary church. Many places in the American west were thinly populated, with large distances between towns. It was easier for the preacher to travel than it was for farmers or ranchers to be away from their work for several days or weeks to be married or whatever. Many circuit riders were Baptists or Methodists. [1837

a computer expert, trainer, management consultant, and communications strategist all rolled into one

a nonprofit technical consultant who services many nonprofits on a rotating basis

a concept from the history of American Methodism