An advertiser is a person, organization or other source of goods or services, that advertise their services or goods across a certain time or space. Advertising is something that promotes goods or services, which an advertiser is responsible for creating or attributing to. Advertisers can not only promote their goods or services, but can also promote services or goods they are affiliated with. Advertisers use things like commercials, billboards, flyers, etc. to get their message across a certain space. Advertisers do this in order to raise awareness or money for themselves or the person or organization theyre affiliated with. Advertisers may be getting paid from their affiliates to do this as well.