SEO rising faster than overall search marketing
U.S. spending on search engine marketing will nearly double from $12.2 billion in '08 to $23.4 billion in '13.
- All four types of search marketing will gain more marketer dollars each year.
- Marketers will invest approximately 63% of their annual U.S. search engine marketing spending in paid search from '08 through '13.
- SEO spending will rise from a 12.7% share in '08 to a 16.5% share in '13.
