A flyer (also spelled flier1[›] or called a circular, handbill or leaflet) is a single-page leaflet advertising a nightclub, event, service, or other activity. Flyers are typically used by individuals or businesses to promote their products or services. They are a form of mass marketing or small scale, community communication. The verb "flyering" or "fliering" has evolved as a colloquial expression meaning "to put up flyers".