EMarketer has cut its projections for ad spend on social networks to £2.2bn in 2011, down by £200m on its estimate of £2.4bn. However, the growth rate for worldwide social network ad spending still dwarfs that of worldwide online ad spending. This year it is estimated that social networks will generate around £1bn in ad revenues.
Online ad spend is projected to increase by 22% in 2008, compared to social network ad spending, which is expected to expand by 72%.