Newspaper advertising revenue in 2007 dropped 9.4 per cent compared with the previous year, according to figures just released by the Newspaper Association of America. It was the biggest fall since 1950, the year the NAA started tracking annual revenue. But people forget how much money is spent on newspaper advertising. Last year it was worth $42 billion in the US. The diagram at right shows how advertising has grown in the past half century.Online advertising revenue grew 18.8 per cent to $3.2 billion. The growth rate was lower than the 31.4 per cent for 2006. Online revenue (the light brown section) was 7.6 per cent of total newspaper advertising revenues.