n rock-art paintings that date back to 4000 BCE.[6] As printing developed in the 15th and 16th centute television became increasingly prevalent, specialty channels emerged, including channels entirelying aware of the need to measure the collaborative effects of marketing, i.e. how the Internet affecf movable type, the first trade catalogs from printer-publishers appeared sometime around 1450.[citaA DBAG Class 101 with UNICEF ads at Ingolstadt main railway stationessages, and interactive advertising where the viewer can respond to become part of the advertising ing to pay for. Marketers hope that this process will give them a sustainable competitive advantage.
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