Demand side platforms act on behalf of ad agencies, who sell ads which advertise brands. The company does not advertise because advertising would widen that gap. Sales promotions are another way to advertise. General Motors announced it would not advertise on the game, citing the advertising costs. They then advertise job offers on Job Search sites. This way political parties are able to advertise their campaign more specifically. Sometimes they advertise in newspapers or online. Such painting would obviously advertise itself anywhere. It also has a section where chess coaches can advertise their services to users. Bollywood is also used to advertise other products. Bluetooth devices can advertise all of the services they provide. Some of these providers such as Hulu advertise and charge a monthly fee. If females respond they advertise their receptivity. They also advertise their presence to other individuals though tree markings and urine. Today, few stations advertise or provide full service.