Search continues to take nearly half of all Internet advertising, with 47% of the total ($5.1 billion). Display ads, classified listings, lead generation and email took 34%, 10%, 7% and 1%, respectively. Search took just 44% of total advertising revenue in the first half of 2008.
Digital video jumped from 3% to 4% of the total in the first half of 2009, to $477 million.
2008 was the peak year so far for Internet advertising in the U.S., with $23.4 billion in total revenues. That’s up from just $6 billion in 2002.
Retail advertisers represented the largest category of spending, at 20%. Telecom (16%), Leisure Travel (6%), Financial Services (12%), Automotive (11%), Computing (10%), Consumer Packaged Goods/Food Products (6%), Entertainment (4%) and Media (4%) made up most of the rest.