Growth for US online ad spending will crest this year at 20.2% and remain solidly in double digits through 2014, eMarketer forecasts. By 2015, total online ad spending will approach $50 billion. Several factors support the overall upshift in online ad spending.
Search remains a major source of ad dollars, and will gain $2.38 billion in new spending this year. There is also sustained support for banner ads, coming from ad networks, large sites like Yahoo! and Google, and big gains at Facebook. Video continues to be the fastest-growing format.