Digital video, a component of display-related advertising, brought in $2.3 billion, marking a significant year-over-year increase of 29 percent in 2012, compared to $1.8 billion in 2011.
Search revenues in 2012 totaled $16.9 billion or 46 percent of 2012 revenues, up 14.5 percent from $14.8 billion in 2011.
Display-related advertising revenues in 2012 totaled $12 billion or 33 percent of 2012 revenues, up almost 9 percent from $11 billion in 2011.
Retail advertisers continue to represent the largest category of internet ad spending, accounting for 20 percent in 2012, followed by financial services, which is responsible for 13 percent of the year’s revenues.