Interactive Corp, Experian and General Motors spent the most on internet advertising in the US during 2011, according to new research.
The study, from Kantar Media, looked at spend on display and paid search during 2011.
Overall, paid search budgets shrank by 2.8% year on year while display yielded 5.5% growth, meaning the internet as a whole saw demand increase by just 0.4%.
Source: www.kantarmedia.com
