- Above the line promotion: Promotion in the media (e.g. TV, radio, newspapers, Internet, Mobile Phones, and, historically, illustrated songs) in which the advertiser pays an advertising agency to place the ad
- Below the line promotion: All other promotion. Much of this is intended to be subtle enough for the consumer to be unaware that promotion is taking place. E.g. sponsorship, product placement, endorsements, sales promotion, merchandising, direct mail, personal selling, public relations, trade shows
http://en.wikipedia.org/wiki/Promotion_%28marketing%29














